diff --git a/wp-includes/css/customize-controls.dev.css b/wp-includes/css/customize-controls.dev.css
index ec40685e19..01687ebfbc 100644
--- a/wp-includes/css/customize-controls.dev.css
+++ b/wp-includes/css/customize-controls.dev.css
@@ -46,7 +46,12 @@ body {
 }
 
 .control-section .customize-section-title:hover {
-	background: -webkit-linear-gradient( top, #f5f5f5, #eee );
+	background-color: #efefef;
+	background-image: -webkit-linear-gradient( top, #f5f5f5, #eee );
+	background-image: -moz-linear-gradient( top, #f5f5f5, #eee );
+	background-image: -ms-linear-gradient( top, #f5f5f5, #eee );
+	background-image: -o-linear-gradient( top, #f5f5f5, #eee );
+	background-image: linear-gradient( top, #f5f5f5, #eee );
 	box-shadow: inset -11px 0 8px -8px rgba( 0, 0, 0, 0.1 );
 }
 
@@ -308,6 +313,7 @@ body {
 
 .customize-section .color-picker-hex input[type="text"] {
 	width: 50px;
+	height: 22px;
 	line-height: 16px;
 	color: #777;
 	background: transparent;