Hello Matjaž,
The observed behavior is caused by the
way the z-index property works in general. The
z-index of a child element cannot be higher of the one of its parent element.
The
.k-animation-container div is a child of the corresponding expanded LI element, which in turn is a child either of another
.k-animation-container div, or of the root
UL the Kendo UI Menu is initialized from. Therefore it is not possible to show one sub-menu level below the Kendo UI Window, and another - on top of it.
You can only set the
z-index of the root
UL's descendant
LIs to be higher than the Window's one, and therefore show all sub-menus on top of the Window:
http://dojo.telerik.com/EkIlI/2
Regards,
Dimiter Topalov
Telerik by Progress