About: Fix the WordPress badge.

`css-clean` (minifies our CSS) has an issue when using multiple backgrounds and background position together. Instead of relying on browser support for multiple backgrounds to display the WP logo as SVG, use the `.svg` CSS class.

see #30735.
Built from https://develop.svn.wordpress.org/trunk@30946


git-svn-id: http://core.svn.wordpress.org/trunk@30935 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/about-rtl.css

@@ -45,7 +45,6 @@
 
 .wp-badge {
 	background: #0074a2 url(../images/w-logo-white.png?ver=20131202) no-repeat;
-	background: #0074a2, url(../images/wordpress-logo-white.svg?ver=20131110) no-repeat; /* multiple backgrounds are ignored by browsers that don't support SVGs */
 	background-position: center 24px;
 	-webkit-background-size: 85px 85px;
 	background-size: 85px 85px;
@@ -63,6 +62,9 @@
 	box-shadow: 0 1px 3px rgba(0,0,0,0.2);
 }
 
+.svg .wp-badge {
+	background-image: url(../images/wordpress-logo-white.svg?ver=20131110);
+}
 
 .about-wrap .wp-badge {
 	position: absolute;

wp-admin/css/about.css

@@ -45,7 +45,6 @@
 
 .wp-badge {
 	background: #0074a2 url(../images/w-logo-white.png?ver=20131202) no-repeat;
-	background: #0074a2, url(../images/wordpress-logo-white.svg?ver=20131110) no-repeat; /* multiple backgrounds are ignored by browsers that don't support SVGs */
 	background-position: center 24px;
 	-webkit-background-size: 85px 85px;
 	background-size: 85px 85px;
@@ -63,6 +62,9 @@
 	box-shadow: 0 1px 3px rgba(0,0,0,0.2);
 }
 
+.svg .wp-badge {
+	background-image: url(../images/wordpress-logo-white.svg?ver=20131110);
+}
 
 .about-wrap .wp-badge {
 	position: absolute;