Index: src/wp-admin/css/about.css
===================================================================
--- src/wp-admin/css/about.css	(revision 32600)
+++ src/wp-admin/css/about.css	(working copy)
@@ -255,10 +255,11 @@
 
 /* Return to Dashboard Home link */
 
-.about-wrap .return-to-dashboard {
+.about-wrap div.return-to-dashboard {
 	margin: 30px 0 0 -5px;
 	font-size: 14px;
 	font-weight: bold;
+	width: 100%;
 }
 
 .about-wrap .return-to-dashboard a {