diff --git a/resources/mmv/mmv.mixins.less b/resources/mmv/mmv.mixins.less
index f0e59e837..3e1c65f9c 100644
--- a/resources/mmv/mmv.mixins.less
+++ b/resources/mmv/mmv.mixins.less
@@ -10,18 +10,15 @@
 // from https://stackoverflow.com/a/12178019/323407
 .fade-out-vertical( @backgroundColor: white ) {
 	@invisible: fadeout( @backgroundColor, 100% );
-	background-image: -webkit-linear-gradient( top, @invisible 0%, @backgroundColor 100% ); // Chrome10+,Safari5.1+
 	background-image: linear-gradient( to bottom, @invisible 0%, @backgroundColor 100% ); // W3C
 }
 
 .fade-out-horizontal( @backgroundColor: white ) {
 	@invisible: fadeout( @backgroundColor, 100% );
-	background-image: -webkit-linear-gradient( left, @invisible 0%, @backgroundColor 100% ); // Chrome10+,Safari5.1+
 	background-image: linear-gradient( to right, @invisible 0%, @backgroundColor 100% ); // W3C
 }
 
 .rotate( @degrees: 45deg ) {
-	-webkit-transform: rotate( @degrees );
 	transform: rotate( @degrees );
 }
 
diff --git a/resources/mmv/ui/mmv.ui.metadataPanelScroller.less b/resources/mmv/ui/mmv.ui.metadataPanelScroller.less
index 722807686..25bac7cf9 100644
--- a/resources/mmv/ui/mmv.ui.metadataPanelScroller.less
+++ b/resources/mmv/ui/mmv.ui.metadataPanelScroller.less
@@ -1,17 +1,16 @@
 @import '../mmv.variables.less';
 @import '../mmv.mixins.less';
-@import 'mediawiki.mixins.animation.less';
 
 .mw-mmv-post-image {
-	.animation( mw-mmv-appear-animation 0.5s ease 0s 1 normal forwards );
+	animation: mw-mmv-appear-animation 0.5s ease 0s 1 normal forwards;
 	transition: box-shadow 0.25s;
 
 	&.invite {
-		.animation( mw-mmv-invite-animation 0.9s ease 0.2s 1 normal forwards );
+		animation: mw-mmv-invite-animation 0.9s ease 0.2s 1 normal forwards;
 	}
 
 	.jq-fullscreened & {
-		.animation( none );
+		animation: none;
 	}
 
 	&.mw-mmv-untruncated,
@@ -34,10 +33,6 @@
 	}
 }
 
-@-webkit-keyframes mw-mmv-appear-animation {
-	.mw-mmv-appear-animation;
-}
-
 @keyframes mw-mmv-appear-animation {
 	.mw-mmv-appear-animation;
 }
@@ -56,10 +51,6 @@
 	}
 }
 
-@-webkit-keyframes mw-mmv-invite-animation {
-	.mw-mmv-invite-animation;
-}
-
 @keyframes mw-mmv-invite-animation {
 	.mw-mmv-invite-animation;
 }
diff --git a/resources/mmv/ui/mmv.ui.progressBar.less b/resources/mmv/ui/mmv.ui.progressBar.less
index 6cf1c48df..199374e49 100644
--- a/resources/mmv/ui/mmv.ui.progressBar.less
+++ b/resources/mmv/ui/mmv.ui.progressBar.less
@@ -1,5 +1,4 @@
 @import '../mmv.variables.less';
-@import 'mediawiki.mixins.animation.less';
 
 @progress-height: @progress-bar-height;
 
@@ -21,7 +20,7 @@
 	height: @progress-height;
 	background: linear-gradient( -45deg, transparent 33%, rgba( 0, 0, 0, 0.1 ) 33%, rgba( 0, 0, 0, 0.1 ) 66%, transparent 66% ), #36c;
 	background-size: 35px 20px, 100% 100%, 100% 100%;
-	.animation( mw-mmv-progress-percent-animation 1.5s linear infinite );
+	animation: mw-mmv-progress-percent-animation 1.5s linear infinite;
 }
 
 .mw-mmv-progress-percent-animation() {
@@ -34,10 +33,6 @@
 	}
 }
 
-@-webkit-keyframes mw-mmv-progress-percent-animation {
-	.mw-mmv-progress-percent-animation;
-}
-
 @keyframes mw-mmv-progress-percent-animation {
 	.mw-mmv-progress-percent-animation;
 }