The most common control that is used and which looks difficult yet easy to style is the button control. To style a button all you need to see is the direction of light when you press it. By direction of light, I mean, how and where the shadow should fall in order to give the user a feel of it being pressed. After all styling is all about observation and giving the user feeling of real time effects.
So here we zoom......
the button control which I have styled now has a glassy look and turns green on hover. You may change the colors according to your need by just changing the color code. It looks like this..
In normal state
on mouse over