Can't get CSS drop down nav to go over content

问题

Ok, I have tried everything I can think of and can't get z-index:1; to put my drop down menu on top of the content and page title. Can someone please take a look and tell me what I have wrong?

Thanks so much (in advance)

http://jsfiddle.net/kreali/cDgH2/

回答1:

Your div.myMain have z-index:1000; so your #nav_home must have bigger z-index! Put z-index: 9999; on #nav_home. Here is edited fiddle http://jsfiddle.net/cDgH2/1/

回答2:

Like this? http://jsfiddle.net/joplomacedo/cDgH2/2/

You had the z-index on div.myMain set to 1000, which was higher than the z-index: 1 on the #nav_home.

来源：https://stackoverflow.com/questions/11764192/cant-get-css-drop-down-nav-to-go-over-content