Index: wp-admin/css/wp-admin.dev.css
===================================================================
--- wp-admin/css/wp-admin.dev.css	(revision 15189)
+++ wp-admin/css/wp-admin.dev.css	(working copy)
@@ -650,6 +650,7 @@
 }
 
 #postcustomstuff #newmetaleft a {
+	display: block;
 	padding: 0 10px;
 	text-decoration: none;
 }