How do I make corners rounded only on the top part of the border in css? [closed]

Answer 1

Brendan's answer is correct, but to get it to render in more browsers, you should use this:

-moz-border-radius: 0px;
-webkit-border-radius: 3px 3px 0px 0px;
border-radius: 3px 3px 0px 0px;