However the Firefox for Mac is not displaying it right.
It looks like an isolated problem, but I thought that putting it here would be a good idea.
On Chrome and Safari it worked fine.
On Windows it worked fine, including IE.
The bug happened on Firefox 16.0.2 on Mac Mt Lion.
It shows the nested options, however it has a gap between them (see attached screenshot). So when I try hovering the sub-item, the mouse goes over the gap and the menu loses focus, making it unusable.
Edited by kuramayoko10, 19 November 2012 - 07:19 PM.