"With an advertising world keen to use every inch of a medium for brand or product experience, it is becoming increasingly popular to design websites with full-browser backgrounds. Using CSS, this can be achieved quite easily. Just drop a huge background image in a page with one line of code"
text-rendering css property that seems to mostly work just in safari.
Interesting demo of next-gen CSS possibilities.
Good resource for the Bringhurst-y web designer.
A longstanding website devoted to tracking the various quirks and workarounds of the different browsers w/r/t their implementations of CSS rendering. Always a good place to start if your layout looks screwed. Origin of the Hollyhack.
Comprehensive and easily navigable interface for the CSS2 spec. As such, it's somewhat outdated (CSS3 is beginning to be adopted by modern browsers), but contains the bulk of the CSS properties that you will end up using.
CSS allows for almost complete separation of content from presentation, a common ideal for web designers. It allows for greater flexibility and simplicity in development and accessibility. CSS is simple to write but syntactically distinct from HTML.
Interesting combination of css3 and php to reveal bitmap images when you highlight a block of text.
CSS hacks make me sort of nervous, but the more complicated ones make me really frustrated. I'll take nervous over frustrated any day. This hack beats the *+first.html hack by a mile. Plus (reason I found it) it works with sIFR css files.