diff --git a/package.json b/package.json
index 7320608e1c..07081f0820 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "author": "The WordPress Contributors",
   "license": "GPL-2.0+",
   "devDependencies": {
-    "autoprefixer": "~6.0.3",
+    "autoprefixer": "~6.1.0",
     "grunt": "~0.4.5",
     "grunt-browserify": "~4.0.1",
     "grunt-contrib-clean": "~0.6.0",
diff --git a/src/wp-admin/css/customize-nav-menus.css b/src/wp-admin/css/customize-nav-menus.css
index 35e381fe79..f57c302aad 100644
--- a/src/wp-admin/css/customize-nav-menus.css
+++ b/src/wp-admin/css/customize-nav-menus.css
@@ -172,10 +172,9 @@
 	left: -10px;
 	width: 10px;
 	height: 40px;
-	background: -webkit-linear-gradient(left, rgba(250,250,250,0) 0%,rgba(250,250,250,1) 100%);
 	background: -webkit-gradient(linear, left top, right top, from(rgba(250,250,250,0)), to(rgba(250,250,250,1)));
 	background: -webkit-linear-gradient(left, rgba(250,250,250,0) 0%, rgba(250,250,250,1) 100%);
-	background: linear-gradient(to right, rgba(250,250,250,0) 0%,rgba(250,250,250,1) 100%);
+	background: linear-gradient(to right, rgba(250,250,250,0) 0%, rgba(250,250,250,1) 100%);
 }
 
 .reordering .menu-item .item-controls,
diff --git a/src/wp-admin/css/edit.css b/src/wp-admin/css/edit.css
index 375f643498..2dca35b986 100644
--- a/src/wp-admin/css/edit.css
+++ b/src/wp-admin/css/edit.css
@@ -1272,7 +1272,9 @@ table.links-table {
 	-webkit-transition-duration: 0.6s;
 	transition-duration: 0.6s;
 	-webkit-transition-property: -webkit-transform;
+	transition-property: -webkit-transform;
 	transition-property: transform;
+	transition-property: transform, -webkit-transform;
 	-webkit-transition-timing-function: ease-in-out;
 	transition-timing-function: ease-in-out;
 }
@@ -1292,7 +1294,9 @@ table.links-table {
 	-webkit-transition-duration: 0.2s;
 	transition-duration: 0.2s;
 	-webkit-transition-property: -webkit-transform;
+	transition-property: -webkit-transform;
 	transition-property: transform;
+	transition-property: transform, -webkit-transform;
 	-webkit-transition-timing-function: ease-in-out;
 	transition-timing-function: ease-in-out;
 }
diff --git a/src/wp-admin/css/press-this.css b/src/wp-admin/css/press-this.css
index 5b7bc46261..d11ebe6a9d 100644
--- a/src/wp-admin/css/press-this.css
+++ b/src/wp-admin/css/press-this.css
@@ -1799,7 +1799,9 @@ html {
 		-ms-transform: translateY(0);
 		transform: translateY(0);
 		-webkit-transition: -webkit-transform .3s ease-in-out;
+		transition: -webkit-transform .3s ease-in-out;
 		transition: transform .3s ease-in-out;
+		transition: transform .3s ease-in-out, -webkit-transform .3s ease-in-out;
 	}
 	.press-this-actions.is-hidden {
 		-webkit-transform: translateY(100%);
@@ -2010,7 +2012,9 @@ html {
 		-ms-transform: translateX(-100%);
 		transform: translateX(-100%);
 		-webkit-transition: -webkit-transform .3s ease-in-out;
+		transition: -webkit-transform .3s ease-in-out;
 		transition: transform .3s ease-in-out;
+		transition: transform .3s ease-in-out, -webkit-transform .3s ease-in-out;
 	}
 
 	.options-panel.is-hidden {
@@ -2088,7 +2092,9 @@ html {
 	white-space: nowrap;
 	overflow: hidden;
 	-webkit-transition: -webkit-transform .3s ease-in-out;
+	transition: -webkit-transform .3s ease-in-out;
 	transition: transform .3s ease-in-out;
+	transition: transform .3s ease-in-out, -webkit-transform .3s ease-in-out;
 }
 
 .post-options .post-option:focus {
@@ -2128,7 +2134,9 @@ html {
 	width: 100%;
 	overflow: hidden;
 	-webkit-transition: -webkit-transform .3s ease-in-out;
+	transition: -webkit-transform .3s ease-in-out;
 	transition: transform .3s ease-in-out;
+	transition: transform .3s ease-in-out, -webkit-transform .3s ease-in-out;
 }
 
 .setting-modal.is-hidden {
diff --git a/src/wp-includes/css/media-views.css b/src/wp-includes/css/media-views.css
index e685517054..939a4cf6e2 100644
--- a/src/wp-includes/css/media-views.css
+++ b/src/wp-includes/css/media-views.css
@@ -1527,7 +1527,7 @@
 	width: 25px;
 	background-image: -webkit-gradient(linear, right top, left top, from(rgba( 255, 255, 255, 1 )), to(rgba( 255, 255, 255, 0 )));
 	background-image: -webkit-linear-gradient(right, rgba( 255, 255, 255, 1 ), rgba( 255, 255, 255, 0 ));
-	background-image: linear-gradient(to left, rgba( 255, 255, 255, 1 ) ,  rgba( 255, 255, 255, 0 ) );
+	background-image: linear-gradient(to left, rgba( 255, 255, 255, 1 ), rgba( 255, 255, 255, 0 ));
 }
 
 .media-selection .attachment .filename {