Ten CSS tricks you may not know...

A rather interesting article on evolt.org got unearthed today on one of the mailing lists I frequent, highlighting 10 CSS tricks that you may not know. Good article, handy for brush-ups even if you did already know these tricks (shorthand, box model hacks, image replacement techniques, etc.)- although I'd also recommend checking out this 'blogging of related criticisms (constructive, of course) for an even wider-net read... forming your own opinions, of course. :)