Slide Up Tabs
Author: Dynamic Drive
Adding a twist to the regular tabs menu, Slide Up Tabs uses pseudo elements to first separate the tab interface from each menu link itself, then CSS3 to animate the tab into view whenever the mouse rolls over a menu item. The menu uses no "floats" for easy alignment such as "center" or "right", and is extremely easy to customize in terms of its colors, as 3 variations of the original green theme below shows.
The menu work in IE10+ and all modern versions of other browsers and degrades well with the rest.