You can do an awful lot by abusing the crap out of CSS, I remember seeing someone make a very nice Homer Simpson out of pure text and CSS.
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I only remember the nice big 'O' (Opera) logo done in CSS or SVG or something by a fan... The point was that it was made to demonstrate a new Opera feature, I believe ;)
Oh, I just made a search and it's pretty cool when you animate the Homer... :)