Editing Global Behavior
Select Global to access global settings.
Z-index
Specifies the stack level of the menu. Menus with higher z-index will apear in front of HTML elements with lower z-index.
IE6 Support
Determines support level for the IE6 browser.
The base level support ensures the content and navigation is accessible in IE6 via the bare semantic HTML layer. No advanced decoration or functionality is provided.
Full support provides the highest level of experience with full style and functionality. Full IE6 support option will add some extra IE6 specific HTML markup and CSS rules.
Unless your website specifically targets IE6 users, the base level support is recommended at present, as it results in cleaner HTML markup and smaller CSS footprint, while still guaranteeing the content and navigation is completely accessible in legacy browsers.