The first time hover focus is removed from a top level menu item in the navbar, the background disappears and doesn't return.

1. Login to server
2. Hover over a top-level menu item, like "Resources" or "Administration" . Observe the background change on hover
3. On the ensuing dropdown menu, mouseover some of the ensuing sub-items.  Note that the background of the top-level item remains white.
4. Return focus to top-level menu;  note that background does not change.
5. Repeat step #3 -- hover over menu items again;  note that the background once again goes white.

Current results:
* The first time focus is removed, it will never go return until menu is closed.

Expected results:
* The background should consistently remain white while it, or its sub-menu items, are in hover.

Other notes:

This is really a nit-picky issue -- except that it may be a symptom of larger css or js issues.