Index: wp-includes/css/admin-bar.dev.css
===================================================================
--- wp-includes/css/admin-bar.dev.css	(revision 19258)
+++ wp-includes/css/admin-bar.dev.css	(working copy)
@@ -116,6 +116,7 @@
 	border-width: 0 1px 1px 1px;
 	border-style: solid;
 	border-color: #dfdfdf;
+	z-index: 1;	
 }
 
 #wpadminbar .quicklinks .top-secondary .menupop ul {
@@ -149,6 +150,7 @@
 	text-shadow: none;
 	white-space: nowrap;
 	min-width: 140px;
+	background-color: transparent;
 }
 
 #wpadminbar .shortlink-input {
@@ -192,6 +194,14 @@
 }
 
 #wpadminbar.nojs .quicklinks .menupop:hover a,
+#wpadminbar .quicklinks .menupop.hover a,
+#wpadminbar .quicklinks .menupop a:focus {
+	background-color:  #fff;
+	z-index: 2;
+	position: relative;
+}
+
+#wpadminbar.nojs .quicklinks .menupop:hover a,
 #wpadminbar.nojs .quicklinks .menupop:hover span,
 #wpadminbar .quicklinks .menupop.hover a,
 #wpadminbar .quicklinks .menupop.hover span,