diff --git a/src/web/app/auth/tags/form.tag b/src/web/app/auth/tags/form.tag
index 5bb27c269..8f60aadb5 100644
--- a/src/web/app/auth/tags/form.tag
+++ b/src/web/app/auth/tags/form.tag
@@ -29,7 +29,7 @@
 		<button @click="cancel">キャンセル</button>
 		<button @click="accept">アクセスを許可</button>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/auth/tags/index.tag b/src/web/app/auth/tags/index.tag
index 8d70a4162..e1c0cb82e 100644
--- a/src/web/app/auth/tags/index.tag
+++ b/src/web/app/auth/tags/index.tag
@@ -20,7 +20,7 @@
 		<mk-signin/>
 	</main>
 	<footer><img src="/assets/auth/logo.svg" alt="Misskey"/></footer>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/ch/tags/channel.tag b/src/web/app/ch/tags/channel.tag
index fec542500..ea0234340 100644
--- a/src/web/app/ch/tags/channel.tag
+++ b/src/web/app/ch/tags/channel.tag
@@ -33,7 +33,7 @@
 			<small><a href={ _URL_ }>Misskey</a> ver { _VERSION_ } (葵 aoi)</small>
 		</footer>
 	</main>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -181,7 +181,7 @@
 			</virtual>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
@@ -255,7 +255,7 @@
 		<li each={ files }>{ name }</li>
 	</ol>
 	<input ref="file" type="file" accept="image/*" multiple="multiple" onchange={ changeFile }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/ch/tags/header.tag b/src/web/app/ch/tags/header.tag
index dec83c9a5..8af6f1c37 100644
--- a/src/web/app/ch/tags/header.tag
+++ b/src/web/app/ch/tags/header.tag
@@ -6,7 +6,7 @@
 		<a if={ !SIGNIN } href={ _URL_ }>ログイン(新規登録)</a>
 		<a if={ SIGNIN } href={ _URL_ + '/' + I.username }>{ I.username }</a>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display flex
 
diff --git a/src/web/app/ch/tags/index.tag b/src/web/app/ch/tags/index.tag
index 489f21148..2fd549368 100644
--- a/src/web/app/ch/tags/index.tag
+++ b/src/web/app/ch/tags/index.tag
@@ -6,7 +6,7 @@
 	<ul if={ channels }>
 		<li each={ channels }><a href={ '/' + this.id }>{ this.title }</a></li>
 	</ul>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/activity-table.tag b/src/web/app/common/tags/activity-table.tag
index 1d26d1788..b0a100090 100644
--- a/src/web/app/common/tags/activity-table.tag
+++ b/src/web/app/common/tags/activity-table.tag
@@ -12,7 +12,7 @@
 			stroke-width="0.1"
 			stroke="#f73520"/>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			max-width 600px
diff --git a/src/web/app/common/tags/authorized-apps.tag b/src/web/app/common/tags/authorized-apps.tag
index 0594032de..324871949 100644
--- a/src/web/app/common/tags/authorized-apps.tag
+++ b/src/web/app/common/tags/authorized-apps.tag
@@ -8,7 +8,7 @@
 			<p>{ app.description }</p>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/ellipsis.tag b/src/web/app/common/tags/ellipsis.tag
index 97ef745d0..734454e4a 100644
--- a/src/web/app/common/tags/ellipsis.tag
+++ b/src/web/app/common/tags/ellipsis.tag
@@ -1,5 +1,5 @@
 <mk-ellipsis><span>.</span><span>.</span><span>.</span>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline
 
diff --git a/src/web/app/common/tags/error.tag b/src/web/app/common/tags/error.tag
index 07ba61161..0a6535762 100644
--- a/src/web/app/common/tags/error.tag
+++ b/src/web/app/common/tags/error.tag
@@ -11,7 +11,7 @@
 	<button if={ !troubleshooting } @click="troubleshoot">%i18n:common.tags.mk-error.troubleshoot%</button>
 	<mk-troubleshooter if={ troubleshooting }/>
 	<p class="thanks">%i18n:common.tags.mk-error.thanks%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			width 100%
@@ -108,7 +108,7 @@
 	<p if={ server === false }><b>%fa:exclamation-triangle%%i18n:common.tags.mk-error.troubleshooter.no-server%</b><br>%i18n:common.tags.mk-error.troubleshooter.no-server-desc%</p>
 	<p if={ server === true } class="success"><b>%fa:info-circle%%i18n:common.tags.mk-error.troubleshooter.success%</b><br>%i18n:common.tags.mk-error.troubleshooter.success-desc%</p>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			width 100%
diff --git a/src/web/app/common/tags/file-type-icon.tag b/src/web/app/common/tags/file-type-icon.tag
index dba2ae44d..035aec247 100644
--- a/src/web/app/common/tags/file-type-icon.tag
+++ b/src/web/app/common/tags/file-type-icon.tag
@@ -1,6 +1,6 @@
 <mk-file-type-icon>
 	<virtual if={ kind == 'image' }>%fa:file-image%</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline
 	</style>
diff --git a/src/web/app/common/tags/forkit.tag b/src/web/app/common/tags/forkit.tag
index 55d573108..6a8d06e56 100644
--- a/src/web/app/common/tags/forkit.tag
+++ b/src/web/app/common/tags/forkit.tag
@@ -4,7 +4,7 @@
 			<path class="octo-arm" d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor"></path>
 			<path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor"></path>
 		</svg></a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position absolute
diff --git a/src/web/app/common/tags/introduction.tag b/src/web/app/common/tags/introduction.tag
index 28afc6fa4..c92cff0d1 100644
--- a/src/web/app/common/tags/introduction.tag
+++ b/src/web/app/common/tags/introduction.tag
@@ -5,7 +5,7 @@
 		<p>無料で誰でも利用でき、広告も掲載していません。</p>
 		<p><a href={ _DOCS_URL_ } target="_blank">もっと知りたい方はこちら</a></p>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/messaging/form.tag b/src/web/app/common/tags/messaging/form.tag
index 93733e8d7..33b0beb88 100644
--- a/src/web/app/common/tags/messaging/form.tag
+++ b/src/web/app/common/tags/messaging/form.tag
@@ -12,7 +12,7 @@
 		%fa:R folder-open%
 	</button>
 	<input name="file" type="file" accept="image/*"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/messaging/index.tag b/src/web/app/common/tags/messaging/index.tag
index d38569999..24d49257c 100644
--- a/src/web/app/common/tags/messaging/index.tag
+++ b/src/web/app/common/tags/messaging/index.tag
@@ -33,7 +33,7 @@
 	</div>
 	<p class="no-history" if={ !fetching && history.length == 0 }>%i18n:common.tags.mk-messaging.no-history%</p>
 	<p class="fetching" if={ fetching }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/messaging/message.tag b/src/web/app/common/tags/messaging/message.tag
index f211b10b5..d65bb8770 100644
--- a/src/web/app/common/tags/messaging/message.tag
+++ b/src/web/app/common/tags/messaging/message.tag
@@ -18,7 +18,7 @@
 			<mk-time time={ message.created_at }/><virtual if={ message.is_edited }>%fa:pencil-alt%</virtual>
 		</footer>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			$me-balloon-color = #23A7B6
 
diff --git a/src/web/app/common/tags/messaging/room.tag b/src/web/app/common/tags/messaging/room.tag
index 2fdf50457..0a669dbc9 100644
--- a/src/web/app/common/tags/messaging/room.tag
+++ b/src/web/app/common/tags/messaging/room.tag
@@ -16,7 +16,7 @@
 		<div class="grippie" title="%i18n:common.tags.mk-messaging-room.resize-form%"></div>
 		<mk-messaging-form user={ user }/>
 	</footer>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/nav-links.tag b/src/web/app/common/tags/nav-links.tag
index ea122575a..3766e5c0a 100644
--- a/src/web/app/common/tags/nav-links.tag
+++ b/src/web/app/common/tags/nav-links.tag
@@ -1,6 +1,6 @@
 <mk-nav-links>
 	<a href={ aboutUrl }>%i18n:common.tags.mk-nav-links.about%</a><i>・</i><a href={ _STATS_URL_ }>%i18n:common.tags.mk-nav-links.stats%</a><i>・</i><a href={ _STATUS_URL_ }>%i18n:common.tags.mk-nav-links.status%</a><i>・</i><a href="http://zawazawa.jp/misskey/">%i18n:common.tags.mk-nav-links.wiki%</a><i>・</i><a href="https://github.com/syuilo/misskey/blob/master/DONORS.md">%i18n:common.tags.mk-nav-links.donors%</a><i>・</i><a href="https://github.com/syuilo/misskey">%i18n:common.tags.mk-nav-links.repository%</a><i>・</i><a href={ _DEV_URL_ }>%i18n:common.tags.mk-nav-links.develop%</a><i>・</i><a href="https://twitter.com/misskey_xyz" target="_blank">Follow us on %fa:B twitter%</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline
 	</style>
diff --git a/src/web/app/common/tags/number.tag b/src/web/app/common/tags/number.tag
index 7afb8b398..4b1081a87 100644
--- a/src/web/app/common/tags/number.tag
+++ b/src/web/app/common/tags/number.tag
@@ -1,5 +1,5 @@
 <mk-number>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline
 	</style>
diff --git a/src/web/app/common/tags/poll-editor.tag b/src/web/app/common/tags/poll-editor.tag
index f660032c9..28e059e87 100644
--- a/src/web/app/common/tags/poll-editor.tag
+++ b/src/web/app/common/tags/poll-editor.tag
@@ -14,7 +14,7 @@
 	<button class="destroy" @click="destroy" title="%i18n:common.tags.mk-poll-editor.destroy%">
 		%fa:times%
 	</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 8px
diff --git a/src/web/app/common/tags/poll.tag b/src/web/app/common/tags/poll.tag
index 3d0a559d0..003368815 100644
--- a/src/web/app/common/tags/poll.tag
+++ b/src/web/app/common/tags/poll.tag
@@ -15,7 +15,7 @@
 		<a if={ !isVoted } @click="toggleResult">{ result ? '%i18n:common.tags.mk-poll.vote%' : '%i18n:common.tags.mk-poll.show-result%' }</a>
 		<span if={ isVoted }>%i18n:common.tags.mk-poll.voted%</span>
 	</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/post-menu.tag b/src/web/app/common/tags/post-menu.tag
index 2ca8c9602..da5eaf8ed 100644
--- a/src/web/app/common/tags/post-menu.tag
+++ b/src/web/app/common/tags/post-menu.tag
@@ -15,7 +15,7 @@
 			<button @click="categorize">%i18n:common.tags.mk-post-menu.categorize%</button>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		$border-color = rgba(27, 31, 35, 0.15)
 
 		:scope
diff --git a/src/web/app/common/tags/raw.tag b/src/web/app/common/tags/raw.tag
index adc6de5a3..55de0962e 100644
--- a/src/web/app/common/tags/raw.tag
+++ b/src/web/app/common/tags/raw.tag
@@ -1,5 +1,5 @@
 <mk-raw>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline
 	</style>
diff --git a/src/web/app/common/tags/reaction-icon.tag b/src/web/app/common/tags/reaction-icon.tag
index 012729391..50d62cfba 100644
--- a/src/web/app/common/tags/reaction-icon.tag
+++ b/src/web/app/common/tags/reaction-icon.tag
@@ -9,7 +9,7 @@
 	<virtual if={ opts.reaction == 'confused' }><img src="/assets/reactions/confused.png" alt="%i18n:common.reactions.confused%"></virtual>
 	<virtual if={ opts.reaction == 'pudding' }><img src="/assets/reactions/pudding.png" alt="%i18n:common.reactions.pudding%"></virtual>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline
 
diff --git a/src/web/app/common/tags/reaction-picker.vue b/src/web/app/common/tags/reaction-picker.vue
index 496144d88..307b158c6 100644
--- a/src/web/app/common/tags/reaction-picker.vue
+++ b/src/web/app/common/tags/reaction-picker.vue
@@ -75,7 +75,7 @@
 			onMouseout: function(e) {
 				this.title = placeholder;
 			},
-			close: function() {
+			clo1se: function() {
 				this.$refs.backdrop.style.pointerEvents = 'none';
 				anime({
 					targets: this.$refs.backdrop,
@@ -98,89 +98,85 @@
 	};
 </script>
 
-<mk-reaction-picker>
+<style lang="stylus" scoped>
+	$border-color = rgba(27, 31, 35, 0.15)
 
-	<style>
-		$border-color = rgba(27, 31, 35, 0.15)
+	:scope
+		display block
+		position initial
 
-		:scope
-			display block
-			position initial
+		> .backdrop
+			position fixed
+			top 0
+			left 0
+			z-index 10000
+			width 100%
+			height 100%
+			background rgba(0, 0, 0, 0.1)
+			opacity 0
 
-			> .backdrop
-				position fixed
-				top 0
-				left 0
-				z-index 10000
-				width 100%
-				height 100%
-				background rgba(0, 0, 0, 0.1)
-				opacity 0
+		> .popover
+			position absolute
+			z-index 10001
+			background #fff
+			border 1px solid $border-color
+			border-radius 4px
+			box-shadow 0 3px 12px rgba(27, 31, 35, 0.15)
+			transform scale(0.5)
+			opacity 0
 
-			> .popover
-				position absolute
-				z-index 10001
-				background #fff
-				border 1px solid $border-color
-				border-radius 4px
-				box-shadow 0 3px 12px rgba(27, 31, 35, 0.15)
-				transform scale(0.5)
-				opacity 0
+			$balloon-size = 16px
 
-				$balloon-size = 16px
+			&:not(.compact)
+				margin-top $balloon-size
+				transform-origin center -($balloon-size)
 
-				&:not(.compact)
-					margin-top $balloon-size
-					transform-origin center -($balloon-size)
-
-					&:before
-						content ""
-						display block
-						position absolute
-						top -($balloon-size * 2)
-						left s('calc(50% - %s)', $balloon-size)
-						border-top solid $balloon-size transparent
-						border-left solid $balloon-size transparent
-						border-right solid $balloon-size transparent
-						border-bottom solid $balloon-size $border-color
-
-					&:after
-						content ""
-						display block
-						position absolute
-						top -($balloon-size * 2) + 1.5px
-						left s('calc(50% - %s)', $balloon-size)
-						border-top solid $balloon-size transparent
-						border-left solid $balloon-size transparent
-						border-right solid $balloon-size transparent
-						border-bottom solid $balloon-size #fff
-
-				> p
+				&:before
+					content ""
 					display block
-					margin 0
-					padding 8px 10px
-					font-size 14px
-					color #586069
-					border-bottom solid 1px #e1e4e8
+					position absolute
+					top -($balloon-size * 2)
+					left s('calc(50% - %s)', $balloon-size)
+					border-top solid $balloon-size transparent
+					border-left solid $balloon-size transparent
+					border-right solid $balloon-size transparent
+					border-bottom solid $balloon-size $border-color
 
-				> div
-					padding 4px
-					width 240px
-					text-align center
+				&:after
+					content ""
+					display block
+					position absolute
+					top -($balloon-size * 2) + 1.5px
+					left s('calc(50% - %s)', $balloon-size)
+					border-top solid $balloon-size transparent
+					border-left solid $balloon-size transparent
+					border-right solid $balloon-size transparent
+					border-bottom solid $balloon-size #fff
 
-					> button
-						width 40px
-						height 40px
-						font-size 24px
-						border-radius 2px
+			> p
+				display block
+				margin 0
+				padding 8px 10px
+				font-size 14px
+				color #586069
+				border-bottom solid 1px #e1e4e8
 
-						&:hover
-							background #eee
+			> div
+				padding 4px
+				width 240px
+				text-align center
 
-						&:active
-							background $theme-color
-							box-shadow inset 0 0.15em 0.3em rgba(27, 31, 35, 0.15)
+				> button
+					width 40px
+					height 40px
+					font-size 24px
+					border-radius 2px
 
-	</style>
+					&:hover
+						background #eee
 
-</mk-reaction-picker>
+					&:active
+						background $theme-color
+						box-shadow inset 0 0.15em 0.3em rgba(27, 31, 35, 0.15)
+
+</style>
diff --git a/src/web/app/common/tags/reactions-viewer.tag b/src/web/app/common/tags/reactions-viewer.tag
index 50fb023f7..8ec14a12f 100644
--- a/src/web/app/common/tags/reactions-viewer.tag
+++ b/src/web/app/common/tags/reactions-viewer.tag
@@ -10,7 +10,7 @@
 		<span if={ reactions.confused }><mk-reaction-icon reaction='confused'/><span>{ reactions.confused }</span></span>
 		<span if={ reactions.pudding }><mk-reaction-icon reaction='pudding'/><span>{ reactions.pudding }</span></span>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			border-top dashed 1px #eee
diff --git a/src/web/app/common/tags/signin-history.tag b/src/web/app/common/tags/signin-history.tag
index 9f02fc687..332bfdccf 100644
--- a/src/web/app/common/tags/signin-history.tag
+++ b/src/web/app/common/tags/signin-history.tag
@@ -2,7 +2,7 @@
 	<div class="records" if={ history.length != 0 }>
 		<mk-signin-record each={ rec in history } rec={ rec }/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -50,7 +50,7 @@
 	</header>
 	<pre ref="headers" class="json" show={ show }>{ JSON.stringify(rec.headers, null, 2) }</pre>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			border-bottom solid 1px #eee
diff --git a/src/web/app/common/tags/signin.tag b/src/web/app/common/tags/signin.tag
index 2ee188bbc..949217c71 100644
--- a/src/web/app/common/tags/signin.tag
+++ b/src/web/app/common/tags/signin.tag
@@ -11,7 +11,7 @@
 		</label>
 		<button type="submit" disabled={ signing }>{ signing ? '%i18n:common.tags.mk-signin.signing-in%' : '%i18n:common.tags.mk-signin.signin%' }</button>
 	</form>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/signup.tag b/src/web/app/common/tags/signup.tag
index 0b2ddf6d7..861c65201 100644
--- a/src/web/app/common/tags/signup.tag
+++ b/src/web/app/common/tags/signup.tag
@@ -38,7 +38,7 @@
 		</label>
 		<button @click="onsubmit">%i18n:common.tags.mk-signup.create%</button>
 	</form>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			min-width 302px
diff --git a/src/web/app/common/tags/special-message.tag b/src/web/app/common/tags/special-message.tag
index 6643b1324..5d62797ae 100644
--- a/src/web/app/common/tags/special-message.tag
+++ b/src/web/app/common/tags/special-message.tag
@@ -1,7 +1,7 @@
 <mk-special-message>
 	<p if={ m == 1 && d == 1 }>%i18n:common.tags.mk-special-message.new-year%</p>
 	<p if={ m == 12 && d == 25 }>%i18n:common.tags.mk-special-message.christmas%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/common/tags/stream-indicator.vue b/src/web/app/common/tags/stream-indicator.vue
index 619237193..6964cda34 100644
--- a/src/web/app/common/tags/stream-indicator.vue
+++ b/src/web/app/common/tags/stream-indicator.vue
@@ -49,7 +49,7 @@
 	};
 </script>
 
-<style lang="stylus">
+<style lang="stylus" scoped>
 	> div
 		display block
 		pointer-events none
diff --git a/src/web/app/common/tags/twitter-setting.tag b/src/web/app/common/tags/twitter-setting.tag
index 8419f8b62..f865de466 100644
--- a/src/web/app/common/tags/twitter-setting.tag
+++ b/src/web/app/common/tags/twitter-setting.tag
@@ -7,7 +7,7 @@
 		<a href={ _API_URL_ + '/disconnect/twitter' } target="_blank" if={ I.twitter } @click="disconnect">%i18n:common.tags.mk-twitter-setting.disconnect%</a>
 	</p>
 	<p class="id" if={ I.twitter }>Twitter ID: { I.twitter.user_id }</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			color #4a535a
diff --git a/src/web/app/common/tags/uploader.tag b/src/web/app/common/tags/uploader.tag
index a95004b46..ec9ba0243 100644
--- a/src/web/app/common/tags/uploader.tag
+++ b/src/web/app/common/tags/uploader.tag
@@ -9,7 +9,7 @@
 			<div class="progress waiting" if={ progress != undefined && progress.value == progress.max }></div>
 		</li>
 	</ol>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow auto
diff --git a/src/web/app/desktop/tags/analog-clock.tag b/src/web/app/desktop/tags/analog-clock.tag
index 35661405d..dda5a4b30 100644
--- a/src/web/app/desktop/tags/analog-clock.tag
+++ b/src/web/app/desktop/tags/analog-clock.tag
@@ -1,6 +1,6 @@
 <mk-analog-clock>
 	<canvas ref="canvas" width="256" height="256"></canvas>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> canvas
 				display block
diff --git a/src/web/app/desktop/tags/autocomplete-suggestion.tag b/src/web/app/desktop/tags/autocomplete-suggestion.tag
index cf22f3a27..843b3a798 100644
--- a/src/web/app/desktop/tags/autocomplete-suggestion.tag
+++ b/src/web/app/desktop/tags/autocomplete-suggestion.tag
@@ -6,7 +6,7 @@
 			<span class="username">@{ username }</span>
 		</li>
 	</ol>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position absolute
diff --git a/src/web/app/desktop/tags/big-follow-button.tag b/src/web/app/desktop/tags/big-follow-button.tag
index 476f95840..f2e9dc656 100644
--- a/src/web/app/desktop/tags/big-follow-button.tag
+++ b/src/web/app/desktop/tags/big-follow-button.tag
@@ -5,7 +5,7 @@
 		<virtual if={ wait }>%fa:spinner .pulse .fw%</virtual>
 	</button>
 	<div class="init" if={ init }>%fa:spinner .pulse .fw%</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/contextmenu.tag b/src/web/app/desktop/tags/contextmenu.tag
index ade44fce2..09d989c09 100644
--- a/src/web/app/desktop/tags/contextmenu.tag
+++ b/src/web/app/desktop/tags/contextmenu.tag
@@ -1,6 +1,6 @@
 <mk-contextmenu>
 	<yield />
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			$width = 240px
 			$item-height = 38px
diff --git a/src/web/app/desktop/tags/crop-window.tag b/src/web/app/desktop/tags/crop-window.tag
index 80f3f4657..43bbcb8c5 100644
--- a/src/web/app/desktop/tags/crop-window.tag
+++ b/src/web/app/desktop/tags/crop-window.tag
@@ -10,7 +10,7 @@
 			</div>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/detailed-post-window.tag b/src/web/app/desktop/tags/detailed-post-window.tag
index 6d6f23ac3..50b4bf920 100644
--- a/src/web/app/desktop/tags/detailed-post-window.tag
+++ b/src/web/app/desktop/tags/detailed-post-window.tag
@@ -3,7 +3,7 @@
 	<div class="main" ref="main" if={ !fetching }>
 		<mk-post-detail ref="detail" post={ post }/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			opacity 0
diff --git a/src/web/app/desktop/tags/dialog.tag b/src/web/app/desktop/tags/dialog.tag
index aff855251..92ea0b2b1 100644
--- a/src/web/app/desktop/tags/dialog.tag
+++ b/src/web/app/desktop/tags/dialog.tag
@@ -9,7 +9,7 @@
 			</virtual>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/donation.tag b/src/web/app/desktop/tags/donation.tag
index 73ee9d003..8a711890f 100644
--- a/src/web/app/desktop/tags/donation.tag
+++ b/src/web/app/desktop/tags/donation.tag
@@ -20,7 +20,7 @@
 			よろしくお願いいたします。
 		</p>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			color #fff
diff --git a/src/web/app/desktop/tags/drive/browser-window.tag b/src/web/app/desktop/tags/drive/browser-window.tag
index f49921eb6..4285992f6 100644
--- a/src/web/app/desktop/tags/drive/browser-window.tag
+++ b/src/web/app/desktop/tags/drive/browser-window.tag
@@ -8,7 +8,7 @@
 			<mk-drive-browser multiple={ true } folder={ parent.folder } ref="browser"/>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/drive/browser.tag b/src/web/app/desktop/tags/drive/browser.tag
index 7e9f4662f..0c0ce4bb4 100644
--- a/src/web/app/desktop/tags/drive/browser.tag
+++ b/src/web/app/desktop/tags/drive/browser.tag
@@ -46,7 +46,7 @@
 	<div class="dropzone" if={ draghover }></div>
 	<mk-uploader ref="uploader"/>
 	<input ref="fileInput" type="file" accept="*/*" multiple="multiple" tabindex="-1" onchange={ changeFileInput }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/drive/file.tag b/src/web/app/desktop/tags/drive/file.tag
index 467768db1..b33e3bc5e 100644
--- a/src/web/app/desktop/tags/drive/file.tag
+++ b/src/web/app/desktop/tags/drive/file.tag
@@ -9,7 +9,7 @@
 		<img src={ file.url + '?thumbnail&size=128' } alt="" onload={ onload }/>
 	</div>
 	<p class="name"><span>{ file.name.lastIndexOf('.') != -1 ? file.name.substr(0, file.name.lastIndexOf('.')) : file.name }</span><span class="ext" if={ file.name.lastIndexOf('.') != -1 }>{ file.name.substr(file.name.lastIndexOf('.')) }</span></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 8px 0 0 0
diff --git a/src/web/app/desktop/tags/drive/folder.tag b/src/web/app/desktop/tags/drive/folder.tag
index 2fae55e50..9458671cd 100644
--- a/src/web/app/desktop/tags/drive/folder.tag
+++ b/src/web/app/desktop/tags/drive/folder.tag
@@ -1,6 +1,6 @@
 <mk-drive-browser-folder data-is-contextmenu-showing={ isContextmenuShowing.toString() } data-draghover={ draghover.toString() } @click="onclick" onmouseover={ onmouseover } onmouseout={ onmouseout } ondragover={ ondragover } ondragenter={ ondragenter } ondragleave={ ondragleave } ondrop={ ondrop } oncontextmenu={ oncontextmenu } draggable="true" ondragstart={ ondragstart } ondragend={ ondragend } title={ title }>
 	<p class="name"><virtual if={ hover }>%fa:R folder-open .fw%</virtual><virtual if={ !hover }>%fa:R folder .fw%</virtual>{ folder.name }</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 8px
diff --git a/src/web/app/desktop/tags/drive/nav-folder.tag b/src/web/app/desktop/tags/drive/nav-folder.tag
index d688d2e08..f16cf2181 100644
--- a/src/web/app/desktop/tags/drive/nav-folder.tag
+++ b/src/web/app/desktop/tags/drive/nav-folder.tag
@@ -1,6 +1,6 @@
 <mk-drive-browser-nav-folder data-draghover={ draghover } @click="onclick" ondragover={ ondragover } ondragenter={ ondragenter } ondragleave={ ondragleave } ondrop={ ondrop }>
 	<virtual if={ folder == null }>%fa:cloud%</virtual><span>{ folder == null ? '%i18n:desktop.tags.mk-drive-browser-nav-folder.drive%' : folder.name }</span>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			&[data-draghover]
 				background #eee
diff --git a/src/web/app/desktop/tags/ellipsis-icon.tag b/src/web/app/desktop/tags/ellipsis-icon.tag
index 8462bfc4a..619f0d84f 100644
--- a/src/web/app/desktop/tags/ellipsis-icon.tag
+++ b/src/web/app/desktop/tags/ellipsis-icon.tag
@@ -2,7 +2,7 @@
 	<div></div>
 	<div></div>
 	<div></div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			width 70px
diff --git a/src/web/app/desktop/tags/follow-button.tag b/src/web/app/desktop/tags/follow-button.tag
index 8a1f7b2c1..5e482509a 100644
--- a/src/web/app/desktop/tags/follow-button.tag
+++ b/src/web/app/desktop/tags/follow-button.tag
@@ -5,7 +5,7 @@
 		<virtual if={ wait }>%fa:spinner .pulse .fw%</virtual>
 	</button>
 	<div class="init" if={ init }>%fa:spinner .pulse .fw%</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/following-setuper.tag b/src/web/app/desktop/tags/following-setuper.tag
index d8cd32a20..9453b5bf5 100644
--- a/src/web/app/desktop/tags/following-setuper.tag
+++ b/src/web/app/desktop/tags/following-setuper.tag
@@ -12,7 +12,7 @@
 	<p class="fetching" if={ fetching }>%fa:spinner .pulse .fw%読み込んでいます<mk-ellipsis/></p>
 	<a class="refresh" @click="refresh">もっと見る</a>
 	<button class="close" @click="close" title="閉じる">%fa:times%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 24px
diff --git a/src/web/app/desktop/tags/home-widgets/access-log.tag b/src/web/app/desktop/tags/home-widgets/access-log.tag
index ecf121d58..47a6fd350 100644
--- a/src/web/app/desktop/tags/home-widgets/access-log.tag
+++ b/src/web/app/desktop/tags/home-widgets/access-log.tag
@@ -9,7 +9,7 @@
 			<span>{ path }</span>
 		</p>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
diff --git a/src/web/app/desktop/tags/home-widgets/activity.tag b/src/web/app/desktop/tags/home-widgets/activity.tag
index f2e9cf824..5cc542272 100644
--- a/src/web/app/desktop/tags/home-widgets/activity.tag
+++ b/src/web/app/desktop/tags/home-widgets/activity.tag
@@ -1,6 +1,6 @@
 <mk-activity-home-widget>
 	<mk-activity-widget design={ data.design } view={ data.view } user={ I } ref="activity"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/desktop/tags/home-widgets/broadcast.tag b/src/web/app/desktop/tags/home-widgets/broadcast.tag
index 157c42963..a1bd2175d 100644
--- a/src/web/app/desktop/tags/home-widgets/broadcast.tag
+++ b/src/web/app/desktop/tags/home-widgets/broadcast.tag
@@ -14,7 +14,7 @@
 	}</h1>
 	<p if={ !fetching }><mk-raw if={ broadcasts.length != 0 } content={ broadcasts[i].text }/><virtual if={ broadcasts.length == 0 }>%i18n:desktop.tags.mk-broadcast-home-widget.have-a-nice-day%</virtual></p>
 	<a if={ broadcasts.length > 1 } @click="next">%i18n:desktop.tags.mk-broadcast-home-widget.next% &gt;&gt;</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 10px
diff --git a/src/web/app/desktop/tags/home-widgets/calendar.tag b/src/web/app/desktop/tags/home-widgets/calendar.tag
index fded57e07..a304d6255 100644
--- a/src/web/app/desktop/tags/home-widgets/calendar.tag
+++ b/src/web/app/desktop/tags/home-widgets/calendar.tag
@@ -24,7 +24,7 @@
 			</div>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 16px 0
diff --git a/src/web/app/desktop/tags/home-widgets/channel.tag b/src/web/app/desktop/tags/home-widgets/channel.tag
index c51ca0752..60227a629 100644
--- a/src/web/app/desktop/tags/home-widgets/channel.tag
+++ b/src/web/app/desktop/tags/home-widgets/channel.tag
@@ -7,7 +7,7 @@
 	</virtual>
 	<p class="get-started" if={ this.data.channel == null }>%i18n:desktop.tags.mk-channel-home-widget.get-started%</p>
 	<mk-channel ref="channel" show={ this.data.channel }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -110,7 +110,7 @@
 		<mk-channel-post each={ post in posts.slice().reverse() } post={ post } form={ parent.refs.form }/>
 	</div>
 	<mk-channel-form ref="form"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -207,7 +207,7 @@
 			</virtual>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
@@ -253,7 +253,7 @@
 
 <mk-channel-form>
 	<input ref="text" disabled={ wait } onkeydown={ onkeydown } placeholder="書いて">
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			width 100%
diff --git a/src/web/app/desktop/tags/home-widgets/donation.tag b/src/web/app/desktop/tags/home-widgets/donation.tag
index a51a7bebb..327cae5a0 100644
--- a/src/web/app/desktop/tags/home-widgets/donation.tag
+++ b/src/web/app/desktop/tags/home-widgets/donation.tag
@@ -3,7 +3,7 @@
 		<h1>%fa:heart%%i18n:desktop.tags.mk-donation-home-widget.title%</h1>
 		<p>{'%i18n:desktop.tags.mk-donation-home-widget.text%'.substr(0, '%i18n:desktop.tags.mk-donation-home-widget.text%'.indexOf('{'))}<a href="/syuilo" data-user-preview="@syuilo">@syuilo</a>{'%i18n:desktop.tags.mk-donation-home-widget.text%'.substr('%i18n:desktop.tags.mk-donation-home-widget.text%'.indexOf('}') + 1)}</p>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/mentions.tag b/src/web/app/desktop/tags/home-widgets/mentions.tag
index 5177b2db1..519e124ae 100644
--- a/src/web/app/desktop/tags/home-widgets/mentions.tag
+++ b/src/web/app/desktop/tags/home-widgets/mentions.tag
@@ -10,7 +10,7 @@
 			<virtual if={ parent.moreLoading }>%fa:spinner .pulse .fw%</virtual>
 		</yield/>
 	</mk-timeline>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/messaging.tag b/src/web/app/desktop/tags/home-widgets/messaging.tag
index 695e1babf..53f4e2f06 100644
--- a/src/web/app/desktop/tags/home-widgets/messaging.tag
+++ b/src/web/app/desktop/tags/home-widgets/messaging.tag
@@ -3,7 +3,7 @@
 		<p class="title">%fa:comments%%i18n:desktop.tags.mk-messaging-home-widget.title%</p>
 	</virtual>
 	<mk-messaging ref="index" compact={ true }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
diff --git a/src/web/app/desktop/tags/home-widgets/nav.tag b/src/web/app/desktop/tags/home-widgets/nav.tag
index 61c0b4cb5..308652433 100644
--- a/src/web/app/desktop/tags/home-widgets/nav.tag
+++ b/src/web/app/desktop/tags/home-widgets/nav.tag
@@ -1,6 +1,6 @@
 <mk-nav-home-widget>
 	<mk-nav-links/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 16px
diff --git a/src/web/app/desktop/tags/home-widgets/notifications.tag b/src/web/app/desktop/tags/home-widgets/notifications.tag
index 051714eab..31ef6f608 100644
--- a/src/web/app/desktop/tags/home-widgets/notifications.tag
+++ b/src/web/app/desktop/tags/home-widgets/notifications.tag
@@ -4,7 +4,7 @@
 		<button @click="settings" title="%i18n:desktop.tags.mk-notifications-home-widget.settings%">%fa:cog%</button>
 	</virtual>
 	<mk-notifications/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/photo-stream.tag b/src/web/app/desktop/tags/home-widgets/photo-stream.tag
index e3bf3a988..80f0573fb 100644
--- a/src/web/app/desktop/tags/home-widgets/photo-stream.tag
+++ b/src/web/app/desktop/tags/home-widgets/photo-stream.tag
@@ -9,7 +9,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ !initializing && images.length == 0 }>%i18n:desktop.tags.mk-photo-stream-home-widget.no-photos%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/post-form.tag b/src/web/app/desktop/tags/home-widgets/post-form.tag
index bf6374dd3..b20a1c361 100644
--- a/src/web/app/desktop/tags/home-widgets/post-form.tag
+++ b/src/web/app/desktop/tags/home-widgets/post-form.tag
@@ -7,7 +7,7 @@
 		<textarea disabled={ posting } ref="text" onkeydown={ onkeydown } placeholder="%i18n:desktop.tags.mk-post-form-home-widget.placeholder%"></textarea>
 		<button @click="post" disabled={ posting }>%i18n:desktop.tags.mk-post-form-home-widget.post%</button>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/profile.tag b/src/web/app/desktop/tags/home-widgets/profile.tag
index bba5b0c47..30ca3c3b6 100644
--- a/src/web/app/desktop/tags/home-widgets/profile.tag
+++ b/src/web/app/desktop/tags/home-widgets/profile.tag
@@ -3,7 +3,7 @@
 	<img class="avatar" src={ I.avatar_url + '?thumbnail&size=96' } @click="setAvatar" alt="avatar" title="クリックでアバター編集" data-user-preview={ I.id }/>
 	<a class="name" href={ '/' + I.username }>{ I.name }</a>
 	<p class="username">@{ I.username }</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
diff --git a/src/web/app/desktop/tags/home-widgets/recommended-polls.tag b/src/web/app/desktop/tags/home-widgets/recommended-polls.tag
index 5489edf5f..3abb35fac 100644
--- a/src/web/app/desktop/tags/home-widgets/recommended-polls.tag
+++ b/src/web/app/desktop/tags/home-widgets/recommended-polls.tag
@@ -10,7 +10,7 @@
 	</div>
 	<p class="empty" if={ !loading && poll == null }>%i18n:desktop.tags.mk-recommended-polls-home-widget.nothing%</p>
 	<p class="loading" if={ loading }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/rss-reader.tag b/src/web/app/desktop/tags/home-widgets/rss-reader.tag
index 45cc62a51..524d0c110 100644
--- a/src/web/app/desktop/tags/home-widgets/rss-reader.tag
+++ b/src/web/app/desktop/tags/home-widgets/rss-reader.tag
@@ -7,7 +7,7 @@
 		<virtual each={ item in items }><a href={ item.link } target="_blank">{ item.title }</a></virtual>
 	</div>
 	<p class="initializing" if={ initializing }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/server.tag b/src/web/app/desktop/tags/home-widgets/server.tag
index 6749a46b1..f716c9dfe 100644
--- a/src/web/app/desktop/tags/home-widgets/server.tag
+++ b/src/web/app/desktop/tags/home-widgets/server.tag
@@ -10,7 +10,7 @@
 	<mk-server-home-widget-disk if={ !initializing } show={ data.view == 3 } connection={ connection }/>
 	<mk-server-home-widget-uptimes if={ !initializing } show={ data.view == 4 } connection={ connection }/>
 	<mk-server-home-widget-info if={ !initializing } show={ data.view == 5 } connection={ connection } meta={ meta }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -158,7 +158,7 @@
 			style="stroke: none; fill: url(#{ memGradientId }); mask: url(#{ memMaskId })"/>
 		<text x="1" y="5">MEM <tspan>{ memP }%</tspan></text>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -239,7 +239,7 @@
 		<p>{ cores } Cores</p>
 		<p>{ model }</p>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -297,7 +297,7 @@
 		<p>Used: { bytesToSize(used, 1) }</p>
 		<p>Free: { bytesToSize(free, 1) }</p>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -363,7 +363,7 @@
 		<p>Available: { bytesToSize(available, 1) }</p>
 		<p>Used: { bytesToSize(used, 1) }</p>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -426,7 +426,7 @@
 	<p>Uptimes</p>
 	<p>Process: { process ? process.toFixed(0) : '---' }s</p>
 	<p>OS: { os ? os.toFixed(0) : '---' }s</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 10px 14px
@@ -464,7 +464,7 @@
 	<p>Maintainer: <b>{ meta.maintainer }</b></p>
 	<p>Machine: { meta.machine }</p>
 	<p>Node: { meta.node }</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 10px 14px
@@ -498,7 +498,7 @@
 			riot-stroke={ color }/>
 		<text x="50%" y="50%" dy="0.05" text-anchor="middle">{ (p * 100).toFixed(0) }%</text>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/home-widgets/slideshow.tag b/src/web/app/desktop/tags/home-widgets/slideshow.tag
index 21b778bae..c356f5cbd 100644
--- a/src/web/app/desktop/tags/home-widgets/slideshow.tag
+++ b/src/web/app/desktop/tags/home-widgets/slideshow.tag
@@ -6,7 +6,7 @@
 		<div ref="slideB" class="slide b"></div>
 	</div>
 	<button @click="resize">%fa:expand%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
diff --git a/src/web/app/desktop/tags/home-widgets/timeline.tag b/src/web/app/desktop/tags/home-widgets/timeline.tag
index f44023daa..4d3d830ce 100644
--- a/src/web/app/desktop/tags/home-widgets/timeline.tag
+++ b/src/web/app/desktop/tags/home-widgets/timeline.tag
@@ -10,7 +10,7 @@
 			<virtual if={ parent.moreLoading }>%fa:spinner .pulse .fw%</virtual>
 		</yield/>
 	</mk-timeline>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/timemachine.tag b/src/web/app/desktop/tags/home-widgets/timemachine.tag
index 3cddf5355..e47ce2d4a 100644
--- a/src/web/app/desktop/tags/home-widgets/timemachine.tag
+++ b/src/web/app/desktop/tags/home-widgets/timemachine.tag
@@ -1,6 +1,6 @@
 <mk-timemachine-home-widget>
 	<mk-calendar-widget design={ data.design } warp={ warp }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/desktop/tags/home-widgets/tips.tag b/src/web/app/desktop/tags/home-widgets/tips.tag
index 9246d0e10..2135a836c 100644
--- a/src/web/app/desktop/tags/home-widgets/tips.tag
+++ b/src/web/app/desktop/tags/home-widgets/tips.tag
@@ -1,6 +1,6 @@
 <mk-tips-home-widget>
 	<p ref="tip">%fa:R lightbulb%<span ref="text"></span></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow visible !important
diff --git a/src/web/app/desktop/tags/home-widgets/trends.tag b/src/web/app/desktop/tags/home-widgets/trends.tag
index 637f53a60..0d8454da6 100644
--- a/src/web/app/desktop/tags/home-widgets/trends.tag
+++ b/src/web/app/desktop/tags/home-widgets/trends.tag
@@ -9,7 +9,7 @@
 	</div>
 	<p class="empty" if={ !loading && post == null }>%i18n:desktop.tags.mk-trends-home-widget.nothing%</p>
 	<p class="loading" if={ loading }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/user-recommendation.tag b/src/web/app/desktop/tags/home-widgets/user-recommendation.tag
index 881373f8d..763d39449 100644
--- a/src/web/app/desktop/tags/home-widgets/user-recommendation.tag
+++ b/src/web/app/desktop/tags/home-widgets/user-recommendation.tag
@@ -15,7 +15,7 @@
 	</div>
 	<p class="empty" if={ !loading && users.length == 0 }>%i18n:desktop.tags.mk-user-recommendation-home-widget.no-one%</p>
 	<p class="loading" if={ loading }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/home-widgets/version.tag b/src/web/app/desktop/tags/home-widgets/version.tag
index 2b66b0490..aeebb53b0 100644
--- a/src/web/app/desktop/tags/home-widgets/version.tag
+++ b/src/web/app/desktop/tags/home-widgets/version.tag
@@ -1,6 +1,6 @@
 <mk-version-home-widget>
 	<p>ver { _VERSION_ } (葵 aoi)</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow visible !important
diff --git a/src/web/app/desktop/tags/home.tag b/src/web/app/desktop/tags/home.tag
index 204760796..e54acd18e 100644
--- a/src/web/app/desktop/tags/home.tag
+++ b/src/web/app/desktop/tags/home.tag
@@ -48,7 +48,7 @@
 			<div ref="right" data-place="right"></div>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/images.tag b/src/web/app/desktop/tags/images.tag
index 8c4234a0f..088f937e7 100644
--- a/src/web/app/desktop/tags/images.tag
+++ b/src/web/app/desktop/tags/images.tag
@@ -2,7 +2,7 @@
 	<virtual each={ image in images }>
 		<mk-images-image image={ image }/>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display grid
 			grid-gap 4px
@@ -60,7 +60,7 @@
 		style={ styles }
 		@click="click"
 		title={ image.name }></a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
@@ -111,7 +111,7 @@
 
 <mk-image-dialog>
 	<div class="bg" ref="bg" @click="close"></div><img ref="img" src={ image.url } alt={ image.name } title={ image.name } @click="close"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position fixed
diff --git a/src/web/app/desktop/tags/input-dialog.tag b/src/web/app/desktop/tags/input-dialog.tag
index 1eef25db1..26fa384e6 100644
--- a/src/web/app/desktop/tags/input-dialog.tag
+++ b/src/web/app/desktop/tags/input-dialog.tag
@@ -13,7 +13,7 @@
 			</div>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/list-user.tag b/src/web/app/desktop/tags/list-user.tag
index 91a6de0a0..c0e1051d1 100644
--- a/src/web/app/desktop/tags/list-user.tag
+++ b/src/web/app/desktop/tags/list-user.tag
@@ -13,7 +13,7 @@
 		</div>
 	</div>
 	<mk-follow-button user={ user }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/desktop/tags/messaging/room-window.tag b/src/web/app/desktop/tags/messaging/room-window.tag
index 39afbe6dd..b13c2d3e9 100644
--- a/src/web/app/desktop/tags/messaging/room-window.tag
+++ b/src/web/app/desktop/tags/messaging/room-window.tag
@@ -5,7 +5,7 @@
 			<mk-messaging-room user={ parent.user }/>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/messaging/window.tag b/src/web/app/desktop/tags/messaging/window.tag
index cd756daa0..ac5513a3f 100644
--- a/src/web/app/desktop/tags/messaging/window.tag
+++ b/src/web/app/desktop/tags/messaging/window.tag
@@ -5,7 +5,7 @@
 			<mk-messaging ref="index"/>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/notifications.tag b/src/web/app/desktop/tags/notifications.tag
index 91876c24f..99024473f 100644
--- a/src/web/app/desktop/tags/notifications.tag
+++ b/src/web/app/desktop/tags/notifications.tag
@@ -83,7 +83,7 @@
 	</button>
 	<p class="empty" if={ notifications.length == 0 && !loading }>ありません！</p>
 	<p class="loading" if={ loading }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/pages/drive.tag b/src/web/app/desktop/tags/pages/drive.tag
index 1cd5ca127..12ebcc47c 100644
--- a/src/web/app/desktop/tags/pages/drive.tag
+++ b/src/web/app/desktop/tags/pages/drive.tag
@@ -1,6 +1,6 @@
 <mk-drive-page>
 	<mk-drive-browser ref="browser" folder={ opts.folder }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position fixed
diff --git a/src/web/app/desktop/tags/pages/entrance.tag b/src/web/app/desktop/tags/pages/entrance.tag
index 95acbc910..9b8b4eca6 100644
--- a/src/web/app/desktop/tags/pages/entrance.tag
+++ b/src/web/app/desktop/tags/pages/entrance.tag
@@ -28,7 +28,7 @@
 			left: 15px;
 		}
 	</style>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			$width = 1000px
 
@@ -160,7 +160,7 @@
 	<a href={ _API_URL_ + '/signin/twitter' }>Twitterでサインイン</a>
 	<div class="divider"><span>or</span></div>
 	<button class="signup" @click="parent.signup">新規登録</button><a class="introduction" @click="introduction">Misskeyについて</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			width 290px
@@ -296,7 +296,7 @@
 <mk-entrance-signup>
 	<mk-signup/>
 	<button class="cancel" type="button" @click="parent.signin" title="キャンセル">%fa:times%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			width 368px
diff --git a/src/web/app/desktop/tags/pages/home-customize.tag b/src/web/app/desktop/tags/pages/home-customize.tag
index 457b8390e..ad74e095d 100644
--- a/src/web/app/desktop/tags/pages/home-customize.tag
+++ b/src/web/app/desktop/tags/pages/home-customize.tag
@@ -1,6 +1,6 @@
 <mk-home-customize-page>
 	<mk-home ref="home" mode="timeline" customize={ true }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/desktop/tags/pages/home.tag b/src/web/app/desktop/tags/pages/home.tag
index 62df62a48..206592518 100644
--- a/src/web/app/desktop/tags/pages/home.tag
+++ b/src/web/app/desktop/tags/pages/home.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui" page={ page }>
 		<mk-home ref="home" mode={ parent.opts.mode }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/desktop/tags/pages/messaging-room.tag b/src/web/app/desktop/tags/pages/messaging-room.tag
index 3c21b9750..48096ec80 100644
--- a/src/web/app/desktop/tags/pages/messaging-room.tag
+++ b/src/web/app/desktop/tags/pages/messaging-room.tag
@@ -1,7 +1,7 @@
 <mk-messaging-room-page>
 	<mk-messaging-room if={ user } user={ user } is-naked={ true }/>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/pages/not-found.tag b/src/web/app/desktop/tags/pages/not-found.tag
index e62ea1100..f2b4ef09a 100644
--- a/src/web/app/desktop/tags/pages/not-found.tag
+++ b/src/web/app/desktop/tags/pages/not-found.tag
@@ -4,7 +4,7 @@
 			<h1>Not Found</h1>
 		</main>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/desktop/tags/pages/post.tag b/src/web/app/desktop/tags/pages/post.tag
index 6d3b030e0..43f040ed2 100644
--- a/src/web/app/desktop/tags/pages/post.tag
+++ b/src/web/app/desktop/tags/pages/post.tag
@@ -6,7 +6,7 @@
 			<a if={ parent.post.prev } href={ parent.post.prev }>%fa:angle-down%%i18n:desktop.tags.mk-post-page.prev%</a>
 		</main>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/pages/search.tag b/src/web/app/desktop/tags/pages/search.tag
index ac93fdaea..4d72fad65 100644
--- a/src/web/app/desktop/tags/pages/search.tag
+++ b/src/web/app/desktop/tags/pages/search.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-search ref="search" query={ parent.opts.query }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/desktop/tags/pages/selectdrive.tag b/src/web/app/desktop/tags/pages/selectdrive.tag
index d497a47c0..723a1dd5a 100644
--- a/src/web/app/desktop/tags/pages/selectdrive.tag
+++ b/src/web/app/desktop/tags/pages/selectdrive.tag
@@ -6,7 +6,7 @@
 		<button class="ok" @click="ok">%i18n:desktop.tags.mk-selectdrive-page.ok%</button>
 	</div>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position fixed
diff --git a/src/web/app/desktop/tags/pages/user.tag b/src/web/app/desktop/tags/pages/user.tag
index 7bad03495..8ea47408c 100644
--- a/src/web/app/desktop/tags/pages/user.tag
+++ b/src/web/app/desktop/tags/pages/user.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-user ref="user" user={ parent.user } page={ parent.opts.page }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/desktop/tags/post-detail-sub.tag b/src/web/app/desktop/tags/post-detail-sub.tag
index 2d79ddd1e..62f09d4e2 100644
--- a/src/web/app/desktop/tags/post-detail-sub.tag
+++ b/src/web/app/desktop/tags/post-detail-sub.tag
@@ -21,7 +21,7 @@
 			</div>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/desktop/tags/post-detail.tag b/src/web/app/desktop/tags/post-detail.tag
index 73ba930c7..4ba8275b2 100644
--- a/src/web/app/desktop/tags/post-detail.tag
+++ b/src/web/app/desktop/tags/post-detail.tag
@@ -63,7 +63,7 @@
 			</virtual>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/desktop/tags/post-form-window.tag b/src/web/app/desktop/tags/post-form-window.tag
index 8955d0679..184ff548a 100644
--- a/src/web/app/desktop/tags/post-form-window.tag
+++ b/src/web/app/desktop/tags/post-form-window.tag
@@ -15,7 +15,7 @@
 			</div>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 
diff --git a/src/web/app/desktop/tags/post-form.tag b/src/web/app/desktop/tags/post-form.tag
index 4dbc69e4e..d32a3b66f 100644
--- a/src/web/app/desktop/tags/post-form.tag
+++ b/src/web/app/desktop/tags/post-form.tag
@@ -23,7 +23,7 @@
 	</button>
 	<input ref="file" type="file" accept="image/*" multiple="multiple" tabindex="-1" onchange={ changeFile }/>
 	<div class="dropzone" if={ draghover }></div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 16px
diff --git a/src/web/app/desktop/tags/post-preview.tag b/src/web/app/desktop/tags/post-preview.tag
index 9a7db5ffa..dcad0ff7c 100644
--- a/src/web/app/desktop/tags/post-preview.tag
+++ b/src/web/app/desktop/tags/post-preview.tag
@@ -8,7 +8,7 @@
 			</div>
 		</div>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/desktop/tags/progress-dialog.tag b/src/web/app/desktop/tags/progress-dialog.tag
index ef055c35b..9f7df312e 100644
--- a/src/web/app/desktop/tags/progress-dialog.tag
+++ b/src/web/app/desktop/tags/progress-dialog.tag
@@ -10,7 +10,7 @@
 			</div>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/repost-form-window.tag b/src/web/app/desktop/tags/repost-form-window.tag
index b501eb076..13a862d97 100644
--- a/src/web/app/desktop/tags/repost-form-window.tag
+++ b/src/web/app/desktop/tags/repost-form-window.tag
@@ -7,7 +7,7 @@
 			<mk-repost-form ref="form" post={ parent.opts.post }/>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/repost-form.tag b/src/web/app/desktop/tags/repost-form.tag
index b2ebbf4c4..da8683ab6 100644
--- a/src/web/app/desktop/tags/repost-form.tag
+++ b/src/web/app/desktop/tags/repost-form.tag
@@ -10,7 +10,7 @@
 	<virtual if={ quote }>
 		<mk-post-form ref="form" repost={ opts.post }/>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 
 			> mk-post-preview
diff --git a/src/web/app/desktop/tags/search-posts.tag b/src/web/app/desktop/tags/search-posts.tag
index 0c8dbcbf6..d263f9576 100644
--- a/src/web/app/desktop/tags/search-posts.tag
+++ b/src/web/app/desktop/tags/search-posts.tag
@@ -9,7 +9,7 @@
 			<virtual if={ parent.moreLoading }>%fa:spinner .pulse .fw%</virtual>
 		</yield/>
 	</mk-timeline>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/search.tag b/src/web/app/desktop/tags/search.tag
index e29a2b273..492999181 100644
--- a/src/web/app/desktop/tags/search.tag
+++ b/src/web/app/desktop/tags/search.tag
@@ -3,7 +3,7 @@
 		<h1>{ query }</h1>
 	</header>
 	<mk-search-posts ref="posts" query={ query }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding-bottom 32px
diff --git a/src/web/app/desktop/tags/select-file-from-drive-window.tag b/src/web/app/desktop/tags/select-file-from-drive-window.tag
index 3e0f00c2f..8e9359b05 100644
--- a/src/web/app/desktop/tags/select-file-from-drive-window.tag
+++ b/src/web/app/desktop/tags/select-file-from-drive-window.tag
@@ -13,7 +13,7 @@
 			</div>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/select-folder-from-drive-window.tag b/src/web/app/desktop/tags/select-folder-from-drive-window.tag
index ad4ae4caf..317fb90ad 100644
--- a/src/web/app/desktop/tags/select-folder-from-drive-window.tag
+++ b/src/web/app/desktop/tags/select-folder-from-drive-window.tag
@@ -11,7 +11,7 @@
 			</div>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/set-avatar-suggestion.tag b/src/web/app/desktop/tags/set-avatar-suggestion.tag
index 82a438fb7..923871a79 100644
--- a/src/web/app/desktop/tags/set-avatar-suggestion.tag
+++ b/src/web/app/desktop/tags/set-avatar-suggestion.tag
@@ -2,7 +2,7 @@
 	<p><b>アバターを設定</b>してみませんか？
 		<button @click="close">%fa:times%</button>
 	</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			cursor pointer
diff --git a/src/web/app/desktop/tags/set-banner-suggestion.tag b/src/web/app/desktop/tags/set-banner-suggestion.tag
index c5c5c7019..fa4e5843b 100644
--- a/src/web/app/desktop/tags/set-banner-suggestion.tag
+++ b/src/web/app/desktop/tags/set-banner-suggestion.tag
@@ -2,7 +2,7 @@
 	<p><b>バナーを設定</b>してみませんか？
 		<button @click="close">%fa:times%</button>
 	</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			cursor pointer
diff --git a/src/web/app/desktop/tags/settings-window.tag b/src/web/app/desktop/tags/settings-window.tag
index 09566b898..64ce1336d 100644
--- a/src/web/app/desktop/tags/settings-window.tag
+++ b/src/web/app/desktop/tags/settings-window.tag
@@ -5,7 +5,7 @@
 			<mk-settings/>
 		</yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/settings.tag b/src/web/app/desktop/tags/settings.tag
index 084bde009..211e36741 100644
--- a/src/web/app/desktop/tags/settings.tag
+++ b/src/web/app/desktop/tags/settings.tag
@@ -67,7 +67,7 @@
 			%license%
 		</section>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display flex
 			width 100%
@@ -150,7 +150,7 @@
 		<input ref="accountBirthday" type="date" value={ I.profile.birthday } class="ui"/>
 	</label>
 	<button class="ui primary" @click="updateAccount">%i18n:desktop.tags.mk-profile-setting.save%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -196,7 +196,7 @@
 	<div class="ui info warn"><p>%fa:exclamation-triangle%%i18n:desktop.tags.mk-api-info.caution%</p></div>
 	<p>%i18n:desktop.tags.mk-api-info.regeneration-of-token%</p>
 	<button class="ui" @click="regenerateToken">%i18n:desktop.tags.mk-api-info.regenerate-token%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			color #4a535a
@@ -226,7 +226,7 @@
 
 <mk-password-setting>
 	<button @click="reset" class="ui primary">%i18n:desktop.tags.mk-password-setting.reset%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			color #4a535a
@@ -281,7 +281,7 @@
 		</ol>
 		<div class="ui info"><p>%fa:info-circle%%i18n:desktop.tags.mk-2fa-setting.info%</p></div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			color #4a535a
@@ -351,7 +351,7 @@
 		<text x="50%" y="50%" dy="0.05" text-anchor="middle">{ (usageP * 100).toFixed(0) }%</text>
 	</svg>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			color #4a535a
@@ -403,7 +403,7 @@
 		</div>
 	</div>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/sub-post-content.tag b/src/web/app/desktop/tags/sub-post-content.tag
index 01e1fdb31..a07180b67 100644
--- a/src/web/app/desktop/tags/sub-post-content.tag
+++ b/src/web/app/desktop/tags/sub-post-content.tag
@@ -14,7 +14,7 @@
 		<summary>投票</summary>
 		<mk-poll post={ post }/>
 	</details>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow-wrap break-word
diff --git a/src/web/app/desktop/tags/timeline.tag b/src/web/app/desktop/tags/timeline.tag
index 115b22c86..008c69017 100644
--- a/src/web/app/desktop/tags/timeline.tag
+++ b/src/web/app/desktop/tags/timeline.tag
@@ -6,7 +6,7 @@
 	<footer data-yield="footer">
 		<yield from="footer"/>
 	</footer>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -151,7 +151,7 @@
 	<div class="detail" if={ isDetailOpened }>
 		<mk-post-status-graph width="462" height="130" post={ p }/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
@@ -613,7 +613,7 @@
 			</div>
 		</div>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/desktop/tags/ui.tag b/src/web/app/desktop/tags/ui.tag
index 4b302a0eb..cae30dbe2 100644
--- a/src/web/app/desktop/tags/ui.tag
+++ b/src/web/app/desktop/tags/ui.tag
@@ -6,7 +6,7 @@
 		<yield />
 	</div>
 	<mk-stream-indicator if={ SIGNIN }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
@@ -56,7 +56,7 @@
 			</div>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position -webkit-sticky
@@ -128,7 +128,7 @@
 		<input ref="q" type="search" placeholder="%i18n:desktop.tags.mk-ui-header-search.placeholder%"/>
 		<div class="result"></div>
 	</form>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 
 			> form
@@ -187,7 +187,7 @@
 
 <mk-ui-header-post-button>
 	<button @click="post" title="%i18n:desktop.tags.mk-ui-header-post-button.post%">%fa:pencil-alt%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline-block
 			padding 8px
@@ -235,7 +235,7 @@
 	<div class="notifications" if={ isOpen }>
 		<mk-notifications/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			float left
@@ -420,7 +420,7 @@
 			</a>
 		</li>
 	</ul>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline-block
 			margin 0
@@ -552,7 +552,7 @@
 	<div class="content">
 		<mk-analog-clock/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline-block
 			overflow visible
@@ -656,7 +656,7 @@
 			</li>
 		</ul>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			float left
@@ -845,7 +845,7 @@
 
 <mk-ui-notification>
 	<p>{ opts.message }</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position fixed
diff --git a/src/web/app/desktop/tags/user-followers-window.tag b/src/web/app/desktop/tags/user-followers-window.tag
index 43127a68a..a67888fa7 100644
--- a/src/web/app/desktop/tags/user-followers-window.tag
+++ b/src/web/app/desktop/tags/user-followers-window.tag
@@ -3,7 +3,7 @@
 <yield to="content">
 		<mk-user-followers user={ parent.user }/></yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/user-followers.tag b/src/web/app/desktop/tags/user-followers.tag
index ea670e272..79fa87141 100644
--- a/src/web/app/desktop/tags/user-followers.tag
+++ b/src/web/app/desktop/tags/user-followers.tag
@@ -1,6 +1,6 @@
 <mk-user-followers>
 	<mk-users-list fetch={ fetch } count={ user.followers_count } you-know-count={ user.followers_you_know_count } no-users={ 'フォロワーはいないようです。' }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			height 100%
diff --git a/src/web/app/desktop/tags/user-following-window.tag b/src/web/app/desktop/tags/user-following-window.tag
index 10a84db31..dd798a020 100644
--- a/src/web/app/desktop/tags/user-following-window.tag
+++ b/src/web/app/desktop/tags/user-following-window.tag
@@ -3,7 +3,7 @@
 <yield to="content">
 		<mk-user-following user={ parent.user }/></yield>
 	</mk-window>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			> mk-window
 				[data-yield='header']
diff --git a/src/web/app/desktop/tags/user-following.tag b/src/web/app/desktop/tags/user-following.tag
index 4523beac2..260900f95 100644
--- a/src/web/app/desktop/tags/user-following.tag
+++ b/src/web/app/desktop/tags/user-following.tag
@@ -1,6 +1,6 @@
 <mk-user-following>
 	<mk-users-list fetch={ fetch } count={ user.following_count } you-know-count={ user.following_you_know_count } no-users={ 'フォロー中のユーザーはいないようです。' }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			height 100%
diff --git a/src/web/app/desktop/tags/user-preview.tag b/src/web/app/desktop/tags/user-preview.tag
index 7993895a8..cf7b96275 100644
--- a/src/web/app/desktop/tags/user-preview.tag
+++ b/src/web/app/desktop/tags/user-preview.tag
@@ -19,7 +19,7 @@
 		</div>
 		<mk-follow-button if={ SIGNIN && user.id != I.id } user={ userPromise }/>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position absolute
diff --git a/src/web/app/desktop/tags/user-timeline.tag b/src/web/app/desktop/tags/user-timeline.tag
index 0bfad05c2..be2649fb6 100644
--- a/src/web/app/desktop/tags/user-timeline.tag
+++ b/src/web/app/desktop/tags/user-timeline.tag
@@ -12,7 +12,7 @@
 			<virtual if={ parent.moreLoading }>%fa:spinner .pulse .fw%</virtual>
 		</yield/>
 	</mk-timeline>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/desktop/tags/user.tag b/src/web/app/desktop/tags/user.tag
index 8eca3caaa..046fef681 100644
--- a/src/web/app/desktop/tags/user.tag
+++ b/src/web/app/desktop/tags/user.tag
@@ -6,7 +6,7 @@
 		<mk-user-home if={ page == 'home' } user={ user }/>
 		<mk-user-graphs if={ page == 'graphs' } user={ user }/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -56,7 +56,7 @@
 			<a href={ '/' + user.username + '/graphs' } data-active={ parent.page == 'graphs' }>%fa:chart-bar%グラフ</a>
 		</footer>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			$banner-height = 320px
 			$footer-height = 58px
@@ -242,7 +242,7 @@
 		<p class="following">%fa:angle-right%<a @click="showFollowing">{ user.following_count }</a>人を<b>フォロー</b></p>
 		<p class="followers">%fa:angle-right%<a @click="showFollowers">{ user.followers_count }</a>人の<b>フォロワー</b></p>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -362,7 +362,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ !initializing && images.length == 0 }>%i18n:desktop.tags.mk-user.photos.no-photos%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -461,7 +461,7 @@
 		<mk-follow-button user={ _user }/>
 	</div>
 	<p class="empty" if={ !initializing && users.length == 0 }>%i18n:desktop.tags.mk-user.frequently-replied-users.no-users%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -568,7 +568,7 @@
 	</virtual>
 	</div>
 	<p class="empty" if={ !initializing && users.length == 0 }>%i18n:desktop.tags.mk-user.followers-you-know.no-users%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -654,7 +654,7 @@
 			<div class="nav"><mk-nav-links/></div>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display flex
 			justify-content center
@@ -753,7 +753,7 @@
 			<mk-user-likes-graph user={ opts.user }/>
 		</div>
 	</section>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -806,7 +806,7 @@
 	</p>
 	<p>* 中央値</p>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/users-list.tag b/src/web/app/desktop/tags/users-list.tag
index 3e993a40e..fd5c73b7d 100644
--- a/src/web/app/desktop/tags/users-list.tag
+++ b/src/web/app/desktop/tags/users-list.tag
@@ -16,7 +16,7 @@
 	</button>
 	<p class="no" if={ !fetching && users.length == 0 }>{ opts.noUsers }</p>
 	<p class="fetching" if={ fetching }>%fa:spinner .pulse .fw%読み込んでいます<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			height 100%
diff --git a/src/web/app/desktop/tags/widgets/activity.tag b/src/web/app/desktop/tags/widgets/activity.tag
index 9b547b95f..b9132e5a5 100644
--- a/src/web/app/desktop/tags/widgets/activity.tag
+++ b/src/web/app/desktop/tags/widgets/activity.tag
@@ -6,7 +6,7 @@
 	<p class="initializing" if={ initializing }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
 	<mk-activity-widget-calender if={ !initializing && view == 0 } data={ [].concat(activity) }/>
 	<mk-activity-widget-chart if={ !initializing && view == 1 } data={ [].concat(activity) }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -110,7 +110,7 @@
 			stroke-width="0.1"
 			stroke="#f73520"/>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -174,7 +174,7 @@
 			stroke="#555"
 			stroke-dasharray="2 2"/>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/desktop/tags/widgets/calendar.tag b/src/web/app/desktop/tags/widgets/calendar.tag
index 00205a90a..4e365650c 100644
--- a/src/web/app/desktop/tags/widgets/calendar.tag
+++ b/src/web/app/desktop/tags/widgets/calendar.tag
@@ -18,7 +18,7 @@
 				@click="go.bind(null, i + 1)"
 				title={ isOutOfRange(i + 1) ? null : '%i18n:desktop.tags.mk-calendar-widget.go%' }><div>{ i + 1 }</div></div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			color #777
diff --git a/src/web/app/desktop/tags/window.tag b/src/web/app/desktop/tags/window.tag
index 31830d907..3752f3609 100644
--- a/src/web/app/desktop/tags/window.tag
+++ b/src/web/app/desktop/tags/window.tag
@@ -20,7 +20,7 @@
 		<div class="handle bottom-right" if={ canResize } onmousedown={ onBottomRightHandleMousedown }></div>
 		<div class="handle bottom-left" if={ canResize } onmousedown={ onBottomLeftHandleMousedown }></div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/dev/tags/new-app-form.tag b/src/web/app/dev/tags/new-app-form.tag
index aba6b1524..1bd5b5a83 100644
--- a/src/web/app/dev/tags/new-app-form.tag
+++ b/src/web/app/dev/tags/new-app-form.tag
@@ -75,7 +75,7 @@
 		</section>
 		<button @click="onsubmit">アプリ作成</button>
 	</form>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
diff --git a/src/web/app/dev/tags/pages/app.tag b/src/web/app/dev/tags/pages/app.tag
index b25e0d859..3fdf8d15b 100644
--- a/src/web/app/dev/tags/pages/app.tag
+++ b/src/web/app/dev/tags/pages/app.tag
@@ -9,7 +9,7 @@
 			<input value={ app.secret } readonly="readonly"/>
 		</div>
 	</main>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/dev/tags/pages/apps.tag b/src/web/app/dev/tags/pages/apps.tag
index 43db70fcf..fbacee137 100644
--- a/src/web/app/dev/tags/pages/apps.tag
+++ b/src/web/app/dev/tags/pages/apps.tag
@@ -10,7 +10,7 @@
 			</ul>
 		</virtual>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/dev/tags/pages/index.tag b/src/web/app/dev/tags/pages/index.tag
index f863876fa..ca270b377 100644
--- a/src/web/app/dev/tags/pages/index.tag
+++ b/src/web/app/dev/tags/pages/index.tag
@@ -1,5 +1,5 @@
 <mk-index><a href="/apps">アプリ</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/dev/tags/pages/new-app.tag b/src/web/app/dev/tags/pages/new-app.tag
index 238b6865e..26185f278 100644
--- a/src/web/app/dev/tags/pages/new-app.tag
+++ b/src/web/app/dev/tags/pages/new-app.tag
@@ -6,7 +6,7 @@
 		</header>
 		<mk-new-app-form/>
 	</main>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 64px 0
diff --git a/src/web/app/mobile/tags/drive-folder-selector.tag b/src/web/app/mobile/tags/drive-folder-selector.tag
index 6a0cb5cea..94cf1db41 100644
--- a/src/web/app/mobile/tags/drive-folder-selector.tag
+++ b/src/web/app/mobile/tags/drive-folder-selector.tag
@@ -7,7 +7,7 @@
 		</header>
 		<mk-drive ref="browser" select-folder={ true }/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position fixed
diff --git a/src/web/app/mobile/tags/drive-selector.tag b/src/web/app/mobile/tags/drive-selector.tag
index 9e6f6a045..9c3a4b5c4 100644
--- a/src/web/app/mobile/tags/drive-selector.tag
+++ b/src/web/app/mobile/tags/drive-selector.tag
@@ -7,7 +7,7 @@
 		</header>
 		<mk-drive ref="browser" select-file={ true } multiple={ opts.multiple }/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position fixed
diff --git a/src/web/app/mobile/tags/drive.tag b/src/web/app/mobile/tags/drive.tag
index 3d0396692..a063d0ca6 100644
--- a/src/web/app/mobile/tags/drive.tag
+++ b/src/web/app/mobile/tags/drive.tag
@@ -51,7 +51,7 @@
 	</div>
 	<input ref="file" type="file" multiple="multiple" onchange={ changeLocalFile }/>
 	<mk-drive-file-viewer if={ file != null } file={ file }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/mobile/tags/drive/file-viewer.tag b/src/web/app/mobile/tags/drive/file-viewer.tag
index 82fbb6609..119ad1fb2 100644
--- a/src/web/app/mobile/tags/drive/file-viewer.tag
+++ b/src/web/app/mobile/tags/drive/file-viewer.tag
@@ -60,7 +60,7 @@
 			<code>{ file.md5 }</code>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/drive/file.tag b/src/web/app/mobile/tags/drive/file.tag
index a04528ce7..96754e1b3 100644
--- a/src/web/app/mobile/tags/drive/file.tag
+++ b/src/web/app/mobile/tags/drive/file.tag
@@ -22,7 +22,7 @@
 			</div>
 		</div>
 	</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/drive/folder.tag b/src/web/app/mobile/tags/drive/folder.tag
index c0ccee6a5..bb17c5e67 100644
--- a/src/web/app/mobile/tags/drive/folder.tag
+++ b/src/web/app/mobile/tags/drive/folder.tag
@@ -4,7 +4,7 @@
 			<p class="name">%fa:folder%{ folder.name }</p>%fa:angle-right%
 		</div>
 	</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/follow-button.tag b/src/web/app/mobile/tags/follow-button.tag
index 805d5e659..baf8f2ffa 100644
--- a/src/web/app/mobile/tags/follow-button.tag
+++ b/src/web/app/mobile/tags/follow-button.tag
@@ -5,7 +5,7 @@
 		<virtual if={ wait }>%fa:spinner .pulse .fw%</virtual>{ user.is_following ? '%i18n:mobile.tags.mk-follow-button.unfollow%' : '%i18n:mobile.tags.mk-follow-button.follow%' }
 	</button>
 	<div class="init" if={ init }>%fa:spinner .pulse .fw%</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/home-timeline.tag b/src/web/app/mobile/tags/home-timeline.tag
index aa3818007..86708bfee 100644
--- a/src/web/app/mobile/tags/home-timeline.tag
+++ b/src/web/app/mobile/tags/home-timeline.tag
@@ -1,7 +1,7 @@
 <mk-home-timeline>
 	<mk-init-following if={ noFollowing } />
 	<mk-timeline ref="timeline" init={ init } more={ more } empty={ '%i18n:mobile.tags.mk-home-timeline.empty-timeline%' }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/home.tag b/src/web/app/mobile/tags/home.tag
index 2c07c286d..1bb9027dd 100644
--- a/src/web/app/mobile/tags/home.tag
+++ b/src/web/app/mobile/tags/home.tag
@@ -1,6 +1,6 @@
 <mk-home>
 	<mk-home-timeline ref="tl"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/images.tag b/src/web/app/mobile/tags/images.tag
index 5899364ae..c39eda38b 100644
--- a/src/web/app/mobile/tags/images.tag
+++ b/src/web/app/mobile/tags/images.tag
@@ -2,7 +2,7 @@
 	<virtual each={ image in images }>
 		<mk-images-image image={ image }/>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display grid
 			grid-gap 4px
@@ -57,7 +57,7 @@
 
 <mk-images-image>
 	<a ref="view" href={ image.url } target="_blank" style={ styles } title={ image.name }></a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
diff --git a/src/web/app/mobile/tags/init-following.tag b/src/web/app/mobile/tags/init-following.tag
index d7e31b460..e0e2532af 100644
--- a/src/web/app/mobile/tags/init-following.tag
+++ b/src/web/app/mobile/tags/init-following.tag
@@ -9,7 +9,7 @@
 	<p class="fetching" if={ fetching }>%fa:spinner .pulse .fw%読み込んでいます<mk-ellipsis/></p>
 	<a class="refresh" @click="refresh">もっと見る</a>
 	<button class="close" @click="close" title="閉じる">%fa:times%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
diff --git a/src/web/app/mobile/tags/notification-preview.tag b/src/web/app/mobile/tags/notification-preview.tag
index ab923ea9d..b2064cd42 100644
--- a/src/web/app/mobile/tags/notification-preview.tag
+++ b/src/web/app/mobile/tags/notification-preview.tag
@@ -47,7 +47,7 @@
 			<p class="post-ref">%fa:quote-left%{ getPostSummary(notification.post) }%fa:quote-right%</p>
 		</div>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/mobile/tags/notification.tag b/src/web/app/mobile/tags/notification.tag
index de44caea2..23a9f2fe3 100644
--- a/src/web/app/mobile/tags/notification.tag
+++ b/src/web/app/mobile/tags/notification.tag
@@ -89,7 +89,7 @@
 			</a>
 		</div>
 	</virtual>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/mobile/tags/notifications.tag b/src/web/app/mobile/tags/notifications.tag
index 520a336b0..ade71ea40 100644
--- a/src/web/app/mobile/tags/notifications.tag
+++ b/src/web/app/mobile/tags/notifications.tag
@@ -10,7 +10,7 @@
 	</button>
 	<p class="empty" if={ notifications.length == 0 && !loading }>%i18n:mobile.tags.mk-notifications.empty%</p>
 	<p class="loading" if={ loading }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 8px auto
diff --git a/src/web/app/mobile/tags/notify.tag b/src/web/app/mobile/tags/notify.tag
index 386166f7f..787d3a374 100644
--- a/src/web/app/mobile/tags/notify.tag
+++ b/src/web/app/mobile/tags/notify.tag
@@ -1,6 +1,6 @@
 <mk-notify>
 	<mk-notification-preview notification={ opts.notification }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			position fixed
diff --git a/src/web/app/mobile/tags/page/drive.tag b/src/web/app/mobile/tags/page/drive.tag
index b5ed3385e..8cc8134bc 100644
--- a/src/web/app/mobile/tags/page/drive.tag
+++ b/src/web/app/mobile/tags/page/drive.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-drive ref="browser" folder={ parent.opts.folder } file={ parent.opts.file } is-naked={ true } top={ 48 }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/entrance.tag b/src/web/app/mobile/tags/page/entrance.tag
index b5da3c947..ebcf30f80 100644
--- a/src/web/app/mobile/tags/page/entrance.tag
+++ b/src/web/app/mobile/tags/page/entrance.tag
@@ -10,7 +10,7 @@
 	<footer>
 		<p class="c">{ _COPYRIGHT_ }</p>
 	</footer>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			height 100%
diff --git a/src/web/app/mobile/tags/page/entrance/signin.tag b/src/web/app/mobile/tags/page/entrance/signin.tag
index 81d0a48a7..e6deea8c3 100644
--- a/src/web/app/mobile/tags/page/entrance/signin.tag
+++ b/src/web/app/mobile/tags/page/entrance/signin.tag
@@ -3,7 +3,7 @@
 	<a href={ _API_URL_ + '/signin/twitter' }>Twitterでサインイン</a>
 	<div class="divider"><span>or</span></div>
 	<button class="signup" @click="parent.signup">%i18n:mobile.tags.mk-entrance-signin.signup%</button><a class="introduction" @click="parent.introduction">%i18n:mobile.tags.mk-entrance-signin.about%</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0 auto
diff --git a/src/web/app/mobile/tags/page/entrance/signup.tag b/src/web/app/mobile/tags/page/entrance/signup.tag
index 6634593d3..d219bb100 100644
--- a/src/web/app/mobile/tags/page/entrance/signup.tag
+++ b/src/web/app/mobile/tags/page/entrance/signup.tag
@@ -1,7 +1,7 @@
 <mk-entrance-signup>
 	<mk-signup/>
 	<button class="cancel" type="button" @click="parent.signin" title="%i18n:mobile.tags.mk-entrance-signup.cancel%">%fa:times%</button>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0 auto
diff --git a/src/web/app/mobile/tags/page/home.tag b/src/web/app/mobile/tags/page/home.tag
index 0c3121a21..4b9343a10 100644
--- a/src/web/app/mobile/tags/page/home.tag
+++ b/src/web/app/mobile/tags/page/home.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-home ref="home"/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/messaging-room.tag b/src/web/app/mobile/tags/page/messaging-room.tag
index 00ee26512..075ea8e83 100644
--- a/src/web/app/mobile/tags/page/messaging-room.tag
+++ b/src/web/app/mobile/tags/page/messaging-room.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-messaging-room if={ !parent.fetching } user={ parent.user } is-naked={ true }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/messaging.tag b/src/web/app/mobile/tags/page/messaging.tag
index 76d610377..acde6f269 100644
--- a/src/web/app/mobile/tags/page/messaging.tag
+++ b/src/web/app/mobile/tags/page/messaging.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-messaging ref="index"/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/new-post.tag b/src/web/app/mobile/tags/page/new-post.tag
index 7adde3b32..1650446b4 100644
--- a/src/web/app/mobile/tags/page/new-post.tag
+++ b/src/web/app/mobile/tags/page/new-post.tag
@@ -1,6 +1,6 @@
 <mk-new-post-page>
 	<mk-post-form ref="form"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/notifications.tag b/src/web/app/mobile/tags/page/notifications.tag
index 596467d47..97717e2e2 100644
--- a/src/web/app/mobile/tags/page/notifications.tag
+++ b/src/web/app/mobile/tags/page/notifications.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-notifications ref="notifications"/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/post.tag b/src/web/app/mobile/tags/page/post.tag
index 5303ca8d3..003f9dea5 100644
--- a/src/web/app/mobile/tags/page/post.tag
+++ b/src/web/app/mobile/tags/page/post.tag
@@ -8,7 +8,7 @@
 			<a if={ parent.post.prev } href={ parent.post.prev }>%fa:angle-down%%i18n:mobile.tags.mk-post-page.prev%</a>
 		</main>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/page/search.tag b/src/web/app/mobile/tags/page/search.tag
index 51c8cce8b..393076367 100644
--- a/src/web/app/mobile/tags/page/search.tag
+++ b/src/web/app/mobile/tags/page/search.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-search ref="search" query={ parent.opts.query }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/selectdrive.tag b/src/web/app/mobile/tags/page/selectdrive.tag
index 172a161ec..c7ff66d05 100644
--- a/src/web/app/mobile/tags/page/selectdrive.tag
+++ b/src/web/app/mobile/tags/page/selectdrive.tag
@@ -6,7 +6,7 @@
 	</header>
 	<mk-drive ref="browser" select-file={ true } multiple={ multiple } is-naked={ true } top={ 42 }/>
 
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			width 100%
diff --git a/src/web/app/mobile/tags/page/settings.tag b/src/web/app/mobile/tags/page/settings.tag
index b388121cb..beaa08b9a 100644
--- a/src/web/app/mobile/tags/page/settings.tag
+++ b/src/web/app/mobile/tags/page/settings.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-settings />
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
@@ -29,7 +29,7 @@
 		<li><a @click="signout">%fa:power-off%%i18n:mobile.tags.mk-settings-page.signout%</a></li>
 	</ul>
 	<p><small>ver { _VERSION_ } (葵 aoi)</small></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/page/settings/authorized-apps.tag b/src/web/app/mobile/tags/page/settings/authorized-apps.tag
index 8d538eba5..0145afc62 100644
--- a/src/web/app/mobile/tags/page/settings/authorized-apps.tag
+++ b/src/web/app/mobile/tags/page/settings/authorized-apps.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-authorized-apps/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/settings/profile.tag b/src/web/app/mobile/tags/page/settings/profile.tag
index 5d6c47794..e213f4070 100644
--- a/src/web/app/mobile/tags/page/settings/profile.tag
+++ b/src/web/app/mobile/tags/page/settings/profile.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-profile-setting/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
@@ -51,7 +51,7 @@
 		</div>
 		<button class="save" @click="save" disabled={ saving }>%fa:check%%i18n:mobile.tags.mk-profile-setting.save%</button>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/page/settings/signin.tag b/src/web/app/mobile/tags/page/settings/signin.tag
index 1a9e63886..5c9164bcf 100644
--- a/src/web/app/mobile/tags/page/settings/signin.tag
+++ b/src/web/app/mobile/tags/page/settings/signin.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-signin-history/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/settings/twitter.tag b/src/web/app/mobile/tags/page/settings/twitter.tag
index 02661d3b6..672eff25b 100644
--- a/src/web/app/mobile/tags/page/settings/twitter.tag
+++ b/src/web/app/mobile/tags/page/settings/twitter.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-twitter-setting/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/user-followers.tag b/src/web/app/mobile/tags/page/user-followers.tag
index a5e63613c..50280e7b9 100644
--- a/src/web/app/mobile/tags/page/user-followers.tag
+++ b/src/web/app/mobile/tags/page/user-followers.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-user-followers ref="list" if={ !parent.fetching } user={ parent.user }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/user-following.tag b/src/web/app/mobile/tags/page/user-following.tag
index b4ed10783..b28efbab9 100644
--- a/src/web/app/mobile/tags/page/user-following.tag
+++ b/src/web/app/mobile/tags/page/user-following.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-user-following ref="list" if={ !parent.fetching } user={ parent.user }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/page/user.tag b/src/web/app/mobile/tags/page/user.tag
index 8eec733fc..04b727636 100644
--- a/src/web/app/mobile/tags/page/user.tag
+++ b/src/web/app/mobile/tags/page/user.tag
@@ -2,7 +2,7 @@
 	<mk-ui ref="ui">
 		<mk-user ref="user" user={ parent.user } page={ parent.opts.page }/>
 	</mk-ui>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/post-detail.tag b/src/web/app/mobile/tags/post-detail.tag
index be377d77f..e397ce7c0 100644
--- a/src/web/app/mobile/tags/post-detail.tag
+++ b/src/web/app/mobile/tags/post-detail.tag
@@ -62,7 +62,7 @@
 			<mk-post-detail-sub post={ post }/>
 		</virtual>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow hidden
@@ -367,7 +367,7 @@
 			</div>
 		</div>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/mobile/tags/post-form.tag b/src/web/app/mobile/tags/post-form.tag
index 6f0794753..202b03c20 100644
--- a/src/web/app/mobile/tags/post-form.tag
+++ b/src/web/app/mobile/tags/post-form.tag
@@ -24,7 +24,7 @@
 		<button class="poll" @click="addPoll">%fa:chart-pie%</button>
 		<input ref="file" type="file" accept="image/*" multiple="multiple" onchange={ changeFile }/>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			max-width 500px
diff --git a/src/web/app/mobile/tags/post-preview.tag b/src/web/app/mobile/tags/post-preview.tag
index aaf846703..716916587 100644
--- a/src/web/app/mobile/tags/post-preview.tag
+++ b/src/web/app/mobile/tags/post-preview.tag
@@ -16,7 +16,7 @@
 			</div>
 		</div>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/mobile/tags/search-posts.tag b/src/web/app/mobile/tags/search-posts.tag
index 3e3c034f2..9cb5ee36f 100644
--- a/src/web/app/mobile/tags/search-posts.tag
+++ b/src/web/app/mobile/tags/search-posts.tag
@@ -1,6 +1,6 @@
 <mk-search-posts>
 	<mk-timeline init={ init } more={ more } empty={ '%i18n:mobile.tags.mk-search-posts.empty%'.replace('{}', query) }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 8px auto
diff --git a/src/web/app/mobile/tags/search.tag b/src/web/app/mobile/tags/search.tag
index 15a861d7a..ab048ea13 100644
--- a/src/web/app/mobile/tags/search.tag
+++ b/src/web/app/mobile/tags/search.tag
@@ -1,6 +1,6 @@
 <mk-search>
 	<mk-search-posts ref="posts" query={ query }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
diff --git a/src/web/app/mobile/tags/sub-post-content.tag b/src/web/app/mobile/tags/sub-post-content.tag
index 7192cd013..3d9175b18 100644
--- a/src/web/app/mobile/tags/sub-post-content.tag
+++ b/src/web/app/mobile/tags/sub-post-content.tag
@@ -8,7 +8,7 @@
 		<summary>%i18n:mobile.tags.mk-sub-post-content.poll%</summary>
 		<mk-poll post={ post }/>
 	</details>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			overflow-wrap break-word
diff --git a/src/web/app/mobile/tags/timeline.tag b/src/web/app/mobile/tags/timeline.tag
index 66f58ff0a..3daf6b6d1 100644
--- a/src/web/app/mobile/tags/timeline.tag
+++ b/src/web/app/mobile/tags/timeline.tag
@@ -18,7 +18,7 @@
 			<span if={ fetching }>%i18n:common.loading%<mk-ellipsis/></span>
 		</button>
 	</footer>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			background #fff
@@ -197,7 +197,7 @@
 			</footer>
 		</div>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
@@ -595,7 +595,7 @@
 			</div>
 		</div>
 	</article>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/mobile/tags/ui.tag b/src/web/app/mobile/tags/ui.tag
index c5dc4b2e4..8f0324f4d 100644
--- a/src/web/app/mobile/tags/ui.tag
+++ b/src/web/app/mobile/tags/ui.tag
@@ -5,7 +5,7 @@
 		<yield />
 	</div>
 	<mk-stream-indicator if={ SIGNIN }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding-top 48px
@@ -58,7 +58,7 @@
 			<button if={ func } @click="func"><mk-raw content={ funcIcon }/></button>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			$height = 48px
 
@@ -250,7 +250,7 @@
 		</div>
 		<a href={ aboutUrl }><p class="about">%i18n:mobile.tags.mk-ui-nav.about%</p></a>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display none
 
diff --git a/src/web/app/mobile/tags/user-card.tag b/src/web/app/mobile/tags/user-card.tag
index d0c79698c..abe46bda0 100644
--- a/src/web/app/mobile/tags/user-card.tag
+++ b/src/web/app/mobile/tags/user-card.tag
@@ -7,7 +7,7 @@
 	<a class="name" href={ '/' + user.username } target="_blank">{ user.name }</a>
 	<p class="username">@{ user.username }</p>
 	<mk-follow-button user={ user }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline-block
 			width 200px
diff --git a/src/web/app/mobile/tags/user-followers.tag b/src/web/app/mobile/tags/user-followers.tag
index c4cdedba8..a4dc99e68 100644
--- a/src/web/app/mobile/tags/user-followers.tag
+++ b/src/web/app/mobile/tags/user-followers.tag
@@ -1,6 +1,6 @@
 <mk-user-followers>
 	<mk-users-list ref="list" fetch={ fetch } count={ user.followers_count } you-know-count={ user.followers_you_know_count } no-users={ '%i18n:mobile.tags.mk-user-followers.no-users%' }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/user-following.tag b/src/web/app/mobile/tags/user-following.tag
index 3a6a54dd7..e1d98297c 100644
--- a/src/web/app/mobile/tags/user-following.tag
+++ b/src/web/app/mobile/tags/user-following.tag
@@ -1,6 +1,6 @@
 <mk-user-following>
 	<mk-users-list ref="list" fetch={ fetch } count={ user.following_count } you-know-count={ user.following_you_know_count } no-users={ '%i18n:mobile.tags.mk-user-following.no-users%' }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/user-preview.tag b/src/web/app/mobile/tags/user-preview.tag
index 48bf88a89..498ad53ec 100644
--- a/src/web/app/mobile/tags/user-preview.tag
+++ b/src/web/app/mobile/tags/user-preview.tag
@@ -11,7 +11,7 @@
 			<div class="description">{ user.description }</div>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0
diff --git a/src/web/app/mobile/tags/user-timeline.tag b/src/web/app/mobile/tags/user-timeline.tag
index 65203fec4..dd878810c 100644
--- a/src/web/app/mobile/tags/user-timeline.tag
+++ b/src/web/app/mobile/tags/user-timeline.tag
@@ -1,6 +1,6 @@
 <mk-user-timeline>
 	<mk-timeline ref="timeline" init={ init } more={ more } empty={ withMedia ? '%i18n:mobile.tags.mk-user-timeline.no-posts-with-media%' : '%i18n:mobile.tags.mk-user-timeline.no-posts%' }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			max-width 600px
diff --git a/src/web/app/mobile/tags/user.tag b/src/web/app/mobile/tags/user.tag
index eb6d9ffbe..f0ecbd1c3 100644
--- a/src/web/app/mobile/tags/user.tag
+++ b/src/web/app/mobile/tags/user.tag
@@ -50,7 +50,7 @@
 			<mk-user-timeline if={ page == 'media' } user={ user } with-media={ true }/>
 		</div>
 	</div>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -259,7 +259,7 @@
 		</div>
 	</section>
 	<p>%i18n:mobile.tags.mk-user-overview.last-used-at%: <b><mk-time time={ user.last_used_at }/></b></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			max-width 600px
@@ -314,7 +314,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ !initializing && posts.length == 0 }>%i18n:mobile.tags.mk-user-overview-posts.no-posts%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -370,7 +370,7 @@
 		</div>
 		<mk-time time={ post.created_at }/>
 	</a>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display inline-block
 			width 150px
@@ -443,7 +443,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ !initializing && images.length == 0 }>%i18n:mobile.tags.mk-user-overview-photos.no-photos%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -519,7 +519,7 @@
 				fill="#a1de41"/>
 			</g>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			max-width 600px
@@ -564,7 +564,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ user.keywords == null || user.keywords.length == 0 }>%i18n:mobile.tags.mk-user-overview-keywords.no-keywords%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -598,7 +598,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ user.domains == null || user.domains.length == 0 }>%i18n:mobile.tags.mk-user-overview-domains.no-domains%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -633,7 +633,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ !initializing && users.length == 0 }>%i18n:mobile.tags.mk-user-overview-frequently-replied-users.no-users%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -685,7 +685,7 @@
 		</virtual>
 	</div>
 	<p class="empty" if={ !initializing && users.length == 0 }>%i18n:mobile.tags.mk-user-overview-followers-you-know.no-users%</p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/mobile/tags/users-list.tag b/src/web/app/mobile/tags/users-list.tag
index 8e18bdea3..31ca58185 100644
--- a/src/web/app/mobile/tags/users-list.tag
+++ b/src/web/app/mobile/tags/users-list.tag
@@ -11,7 +11,7 @@
 		<span if={ moreFetching }>%i18n:common.loading%<mk-ellipsis/></span></button>
 	<p class="no" if={ !fetching && users.length == 0 }>{ opts.noUsers }</p>
 	<p class="fetching" if={ fetching }>%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/stats/tags/index.tag b/src/web/app/stats/tags/index.tag
index 4b5415b2f..494983706 100644
--- a/src/web/app/stats/tags/index.tag
+++ b/src/web/app/stats/tags/index.tag
@@ -5,7 +5,7 @@
 		<mk-posts stats={ stats }/>
 	</main>
 	<footer><a href={ _URL_ }>{ _HOST_ }</a></footer>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0 auto
@@ -59,7 +59,7 @@
 <mk-posts>
 	<h2>%i18n:stats.posts-count% <b>{ stats.posts_count }</b></h2>
 	<mk-posts-chart if={ !initializing } data={ data }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
@@ -85,7 +85,7 @@
 <mk-users>
 	<h2>%i18n:stats.users-count% <b>{ stats.users_count }</b></h2>
 	<mk-users-chart if={ !initializing } data={ data }/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
@@ -133,7 +133,7 @@
 			stroke="#555"
 			stroke-dasharray="2 2"/>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
@@ -178,7 +178,7 @@
 			stroke-width="1"
 			stroke="#555"/>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 
diff --git a/src/web/app/status/tags/index.tag b/src/web/app/status/tags/index.tag
index 198aa89e3..9ac54c867 100644
--- a/src/web/app/status/tags/index.tag
+++ b/src/web/app/status/tags/index.tag
@@ -6,7 +6,7 @@
 		<mk-mem-usage connection={ connection }/>
 	</main>
 	<footer><a href={ _URL_ }>{ _HOST_ }</a></footer>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			margin 0 auto
@@ -77,7 +77,7 @@
 <mk-cpu-usage>
 	<h2>CPU <b>{ percentage }%</b></h2>
 	<mk-line-chart ref="chart"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
@@ -107,7 +107,7 @@
 <mk-mem-usage>
 	<h2>MEM <b>{ percentage }%</b></h2>
 	<mk-line-chart ref="chart"/>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 	</style>
@@ -164,7 +164,7 @@
 			stroke="#f43b16"
 			stroke-width="0.5"/>
 	</svg>
-	<style>
+	<style lang="stylus" scoped>
 		:scope
 			display block
 			padding 16px