Indent and CSS

[digits]

I'm all fresh on Emacs, I have now tried to get Emacs to intent in CSS 
files all day and I can't get it to work.

This is what I want:
body {
<tab>font-size: 10px;
}

h1 {
<tab>font-weight: bold;
}

I know that I can get return-and-indent with C-j, but I would like to 
have it bound to RET when on a line with { as last char.

This is probably so easy I'll be truly ashamed of myself :P

/Gunnar