diff --git a/src/client/pages/messaging/messaging-room.message.vue b/src/client/pages/messaging/messaging-room.message.vue
index 3755bc2b5..8c275d5e3 100644
--- a/src/client/pages/messaging/messaging-room.message.vue
+++ b/src/client/pages/messaging/messaging-room.message.vue
@@ -85,6 +85,8 @@ export default defineComponent({
 	display: flex;
 
 	> .avatar {
+		position: sticky;
+		top: calc(var(--stickyTop, 0px) + 16px);
 		display: block;
 		width: 54px;
 		height: 54px;
@@ -274,6 +276,11 @@ export default defineComponent({
 				background: $me-balloon-color;
 				text-align: left;
 
+				::selection {
+					color: var(--accent);
+					background-color: #fff;
+				} 
+
 				&.noText {
 					background: transparent;
 				}