CSS Library: Vertical CSS Menus: CSS3 demos: Here
Flat flipping menu buttons vertical
Author: Dynamic Drive
This is the vertical vesion of the original Flat Flipping menu buttons. They combine the two hot trends that are flat design (absence of bevels, gradients and shadows etc) and CSS3 to create a bold and modern looking navigation system. Each icon inside the button can either be an image, or CSS icon font (as in first example below) for leaner and more rapid deployment. An optional text can be added beneath each button for additional cue.