问题
I coded horizontal nav with superfish. It working fine when not added to my page. When added to my page its not getting displayed. my page here is the fiddle for navigation demo nav
回答1:
You need to remove position: relative from #wrapper.
Alternatively, you can add z-index: 1 to #chromemenu.
You should read this to understand z-index:
https://developer.mozilla.org/en/understanding_css_z-index
来源：https://stackoverflow.com/questions/5615502/superfish-horizontal-nav-bar-not-getting-displayed-in-the-page