diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index f4e0d126b2..ef920cb75d 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -2194,24 +2194,23 @@ function _default_wp_die_handler( $message, $title = '', $args = array() ) {
 	<title><?php echo $title ?></title>
 	<style type="text/css">
 		html {
-			background: #f9f9f9;
+			background: #eee;
 		}
 		body {
 			background: #fff;
 			color: #333;
-			font-family: sans-serif;
+			font-family: "Open Sans", sans-serif;
 			margin: 2em auto;
 			padding: 1em 2em;
-			-webkit-border-radius: 3px;
-			border-radius: 3px;
-			border: 1px solid #dfdfdf;
 			max-width: 700px;
+			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
+			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
 		}
 		h1 {
 			border-bottom: 1px solid #dadada;
 			clear: both;
 			color: #666;
-			font: 24px Georgia, "Times New Roman", Times, serif;
+			font: 24px "Open Sans", sans-serif;
 			margin: 30px 0 0 0;
 			padding: 0;
 			padding-bottom: 7px;
@@ -2239,31 +2238,28 @@ function _default_wp_die_handler( $message, $title = '', $args = array() ) {
 			color: #D54E21;
 		}
 		.button {
+			background: #f7f7f7;
+			border: 1px solid #cccccc;
+			color: #555;
 			display: inline-block;
 			text-decoration: none;
-			font-size: 14px;
-			line-height: 23px;
-			height: 24px;
+			font-size: 13px;
+			line-height: 26px;
+			height: 28px;
 			margin: 0;
 			padding: 0 10px 1px;
 			cursor: pointer;
-			border-width: 1px;
-			border-style: solid;
 			-webkit-border-radius: 3px;
+			-webkit-appearance: none;
 			border-radius: 3px;
 			white-space: nowrap;
 			-webkit-box-sizing: border-box;
 			-moz-box-sizing:    border-box;
 			box-sizing:         border-box;
-			background: #f3f3f3;
-			background-image: -webkit-gradient(linear, left top, left bottom, from(#fefefe), to(#f4f4f4));
-			background-image: -webkit-linear-gradient(top, #fefefe, #f4f4f4);
-			background-image:    -moz-linear-gradient(top, #fefefe, #f4f4f4);
-			background-image:      -o-linear-gradient(top, #fefefe, #f4f4f4);
-			background-image:   linear-gradient(to bottom, #fefefe, #f4f4f4);
-			border-color: #bbb;
-		 	color: #333;
-			text-shadow: 0 1px 0 #fff;
+		
+			-webkit-box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
+			box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
+		 	vertical-align: top;
 		}
 
 		.button.button-large {
@@ -2274,13 +2270,7 @@ function _default_wp_die_handler( $message, $title = '', $args = array() ) {
 
 		.button:hover,
 		.button:focus {
-			background: #f3f3f3;
-			background-image: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#f3f3f3));
-			background-image: -webkit-linear-gradient(top, #fff, #f3f3f3);
-			background-image:    -moz-linear-gradient(top, #fff, #f3f3f3);
-			background-image:     -ms-linear-gradient(top, #fff, #f3f3f3);
-			background-image:      -o-linear-gradient(top, #fff, #f3f3f3);
-			background-image:   linear-gradient(to bottom, #fff, #f3f3f3);
+			background: #fafafa;
 			border-color: #999;
 			color: #222;
 		}
@@ -2291,17 +2281,9 @@ function _default_wp_die_handler( $message, $title = '', $args = array() ) {
 		}
 
 		.button:active {
-			outline: none;
 			background: #eee;
-			background-image: -webkit-gradient(linear, left top, left bottom, from(#f4f4f4), to(#fefefe));
-			background-image: -webkit-linear-gradient(top, #f4f4f4, #fefefe);
-			background-image:    -moz-linear-gradient(top, #f4f4f4, #fefefe);
-			background-image:     -ms-linear-gradient(top, #f4f4f4, #fefefe);
-			background-image:      -o-linear-gradient(top, #f4f4f4, #fefefe);
-			background-image:   linear-gradient(to bottom, #f4f4f4, #fefefe);
 			border-color: #999;
 			color: #333;
-			text-shadow: 0 -1px 0 #fff;
 			-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
 		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
 		}