‘Recreating the Button’

Douglas Bowman, on the new buttons inside Gmail and Google Reader:

The buttons are designed to look very similar to basic HTML input buttons. But they can handle multiple interactions with one basic design. The buttons we’re using are imageless, and they’re created entirely using HTML and CSS, plus some JavaScript to manage the behavior.

It’s a lengthy read, but it provides a fascinating look into the care these guys put into simple buttons.