Push The Button - CSS3 3D Button
A nice CSS only button with a very beautiful push effect. The push animation is done by basically altering the box-shadow which is used to add the height to the button. To animate it, CSS3's transition property is used here. Apart from this, this creation also uses the goodness of 3D CSS properties like perspective and rotateX transform to make it more interesting. Take a look at the source code to understand the idea behind it.