Run Fiddle: http://zkfiddle.org/sample/3in3jc4/1-collapsed-navbar-with-selected-sub-menuitem-bug
Hover your cursor over the "BA" or "BB" entries and see the menu entries jumping to their correct positions.
Initial rendering of a navbar menu structure is incorrect having a pre-selected sub menuitem.
It does not match the "collapsed style"
no initial animation, hidden <navitem>s
in collapsed mode the <navitem>s are only visible when hovering the parent <nav> element
<child>navitems don't affect the height/width of the surrounding <navbar>