diff -Naur wp-admin/css/common.css wp-admin/css/common.css
--- wp-admin/css/common.css	2018-10-23 11:04:40.000000000 +0530
+++ wp-admin/css/common.css	2018-12-11 15:37:47.918673261 +0530
@@ -2452,7 +2452,7 @@
 	font-weight: 400;
 	font-style: normal;
 	vertical-align: top;
-	transition: color .1s ease-in 0;
+	transition: color .1s ease-in 0s;
 	text-align: center;
 	color: #ffb900;
 }
diff -Naur wp-admin/css/common-rtl.css wp-admin/css/common-rtl.css
--- wp-admin/css/common-rtl.css	2018-10-23 11:04:40.000000000 +0530
+++ wp-admin/css/common-rtl.css	2018-12-11 15:37:29.494843705 +0530
@@ -2452,7 +2452,7 @@
 	font-weight: 400;
 	font-style: normal;
 	vertical-align: top;
-	transition: color .1s ease-in 0;
+	transition: color .1s ease-in 0s;
 	text-align: center;
 	color: #ffb900;
 }
diff -Naur wp-admin/css/themes.css wp-admin/css/themes.css
--- wp-admin/css/themes.css	2018-10-22 05:04:40.000000000 +0530
+++ wp-admin/css/themes.css	2018-12-11 15:42:30.828099506 +0530
@@ -1181,7 +1181,7 @@
 	display: inline-block;
 	line-height: 1;
 	text-align: center;
-	transition: background-color .1s ease-in 0;
+	transition: background-color .1s ease-in 0s;
 }
 
 .background-position-control .background-position-center-icon {
diff -Naur wp-admin/css/themes-rtl.css wp-admin/css/themes-rtl.css
--- wp-admin/css/themes-rtl.css	2018-10-22 05:04:40.000000000 +0530
+++ wp-admin/css/themes-rtl.css	2018-12-11 15:41:44.476516449 +0530
@@ -1181,7 +1181,7 @@
 	display: inline-block;
 	line-height: 1;
 	text-align: center;
-	transition: background-color .1s ease-in 0;
+	transition: background-color .1s ease-in 0s;
 }
 
 .background-position-control .background-position-center-icon {
diff -Naur wp-includes/css/dashicons.css wp-includes/css/dashicons.css
--- wp-includes/css/dashicons.css	2017-07-16 01:15:46.000000000 +0530
+++ wp-includes/css/dashicons.css	2018-12-11 16:02:12.231275682 +0530
@@ -25,7 +25,7 @@
 	font-style: normal;
 	vertical-align: top;
 	text-align: center;
-	transition: color .1s ease-in 0;
+	transition: color .1s ease-in 0s;
 	-webkit-font-smoothing: antialiased;
 	-moz-osx-font-smoothing: grayscale;
 }