Apple Keyboard via CSS3
Apple is known for its minimal and elegant design. Here, Dustin Cartwright created the Apple Wireless Keyboard with only css and html (no images!). Using some new and old techniques he created the shadows, gradients, depth effects, and the positioning/sizing of the keys.
The keys on this keyboard (again, its pure CSS3 AWESOMENESS!!) are well designed and the active state on these keys are just fab. Try clicking on them right now!
It looks great in IE9 but in IE8, the keys look flattened and squared and that's not a problem at all :)