What browsers support “!important”?

Question

Which browsers support the CSS !important directive, and what are the various quirks amongst the different browsers that do support it?

Answer 1

Any browser which supports CSS1+ - ie, any browser that supports CSS - even IE. Even if the CSS implementations are not fully standards-compliant, !important is a core CSS feature.

To elaborate, IIRC, IE5+, all Firefox, most Netscape, Opera, Safari, Chrome.