Index: /trunk/src/wp-includes/css/admin-bar.css
===================================================================
--- /trunk/src/wp-includes/css/admin-bar.css	(revision 63187)
+++ /trunk/src/wp-includes/css/admin-bar.css	(revision 63188)
@@ -232,5 +232,5 @@
 }
 
-#wpadminbar:not(.mobile) > #wp-toolbar li:hover span.ab-label,
+#wpadminbar > #wp-toolbar li:hover span.ab-label,
 #wpadminbar > #wp-toolbar li.hover span.ab-label,
 /* The adminbar menu may output either links or focusable div elements. */