Index: src/wp-admin/css/common.css
===================================================================
--- src/wp-admin/css/common.css	(revision 54511)
+++ src/wp-admin/css/common.css	(working copy)
@@ -141,6 +141,8 @@
 .screen-reader-shortcut {
 	position: absolute;
 	top: -1000em;
+	background: #f0f0f1;
+	color: #2271b1;
 }
 
 .screen-reader-shortcut:focus {
Index: src/wp-includes/css/admin-bar.css
===================================================================
--- src/wp-includes/css/admin-bar.css	(revision 54511)
+++ src/wp-includes/css/admin-bar.css	(working copy)
@@ -719,6 +719,8 @@
 #wpadminbar .screen-reader-shortcut {
 	position: absolute;
 	top: -1000em;
+	background: #f0f0f1;
+	color: #2271b1;
 }
 
 #wpadminbar .screen-reader-shortcut:focus {