Bevel Vertical Menu
This CSS creates an "3 state" vertical menu out of an ordinary list. When the mouse moves over the menu, the menu item bevels up. Furthermore, in modern browsers such as Firefox (not IE6), clicking on the menu creates a depressed effect while the mouse is held down.

Bevel horizontal Menu
This CSS code creates a "3 state" horizontal menu out of an ordinary list. When the mouse moves over the menu, the menu item bevels up, and in modern browsers, depressing on the menu also creates a depressed state.