How to create image-less cross-browser CSS3 buttons

Nice looking application. I'm not sure that I'd ever have a use for it personally, but it would be nice to give to the designers in the office for when they want to prototype code for a web app.

A few points: - It would be nice to be able to specify padding rather than an explicit width and/or height - It would be nice to be able to save gradient presets (especially if you were creating a series of different buttons for the same app) - Would be nice to be able to specify gradient angle - It might be nice to include some other export options (like PNG etc. - It might also be nice to provide different states for the same button - hover, press etc.