Adding CSS to the normal XP buttons in Main CSS?

[exilera]

Question: What would the CSS be which I would add to the 'Main CSS' section under Styles and Templates to make the default XP buttons (such as submit, reset, etc.) appear styled? I'm simply trying to make them flat :)

Thanks for the help!

[Lizard King]

.button

[exilera]

I know it's .button and where to modify the code, I just don't know what the CSS is I need to add to style the buttons :) On my style, the buttons are unstyled.