diff --git a/styles/layouts/all.css b/styles/layouts/all.css
index db18a0c..349094a 100644
--- a/styles/layouts/all.css
+++ b/styles/layouts/all.css
@@ -78,3 +78,10 @@ nav ul:not(.dropdown-content) > li > a {
 		padding-left: 300px;
 	}
 }
+
+iframe.viewer {
+	width: 100%;
+	height: 100%;
+	border: 0;
+	outline: 0;
+}
\ No newline at end of file