diff --git a/resources/skins.vector.styles/MenuDropdown.less b/resources/skins.vector.styles/MenuDropdown.less
index 6a869f803..0283aa5a8 100644
--- a/resources/skins.vector.styles/MenuDropdown.less
+++ b/resources/skins.vector.styles/MenuDropdown.less
@@ -72,7 +72,7 @@
 	}
 
 	// This is in a separate block, so that browsers supporting :hover but not :checked still apply the rule above
-	// Support: IE8
+	// Support: IE 8
 	.vector-menu-checkbox:checked ~ .vector-menu-content .vector-menu-content-list {
 		opacity: 1;
 		visibility: visible;
@@ -121,6 +121,7 @@
 .vector-menu-tabs,
 .vector-menu-tabs a,
 #mw-head .vector-menu-dropdown h3 {
+	// Support: IE 9, which doesn't understand `linear-gradient`.
 	background-image: url( images/tab-separator.png );
 	background-image: linear-gradient( to bottom, rgba( 167, 215, 249, 0 ) 0, @border-color-content 100% );
 	background-repeat: no-repeat;
diff --git a/resources/skins.vector.styles/MenuPortal.less b/resources/skins.vector.styles/MenuPortal.less
index 411239904..251a86ed7 100644
--- a/resources/skins.vector.styles/MenuPortal.less
+++ b/resources/skins.vector.styles/MenuPortal.less
@@ -8,7 +8,7 @@
 
 	h3 {
 		display: block;
-		background-image: url( images/portal-separator.png ); // Support: IE 8 & 9, Fx 3.6-15, Safari 5.1-6, Chrome 10-25
+		background-image: url( images/portal-separator.png ); // Support: IE 9, Fx 3.6-15, Safari 5.1-6, Chrome 10-25
 		background-image: linear-gradient( to right, @border-color-portal-heading-transparent 0, @border-color-portal-heading 33%, @border-color-portal-heading 66%, @border-color-portal-heading-transparent 100% ); // Standard (Firefox 16+, IE 10+, Safari 6.1+, Chrome 26+)
 		background-position: center bottom;
 		background-repeat: no-repeat;
diff --git a/resources/skins.vector.styles/MenuTabs.less b/resources/skins.vector.styles/MenuTabs.less
index 4efad5691..eced99a28 100644
--- a/resources/skins.vector.styles/MenuTabs.less
+++ b/resources/skins.vector.styles/MenuTabs.less
@@ -28,7 +28,7 @@
 
 	li {
 		// Tab fade background: Fade inside from light grey to white.
-		background-image: url( images/tab-normal-fade.png ); // Support: IE 8 & 9, Fx 3.6-15, Safari 5.1-6, Chrome 10-25
+		background-image: url( images/tab-normal-fade.png ); // Support: IE 9, Fx 3.6-15, Safari 5.1-6, Chrome 10-25
 		background-image: linear-gradient( to top, @border-color-content--tabs-inactive 0, #e8f2f8 1px, #fff 100% ); // Support: Standard (Firefox 16+, IE 10+, Safari 6.1+, Chrome 26+)
 		background-position: left bottom;
 		background-repeat: repeat-x;