OK, so this may not be considered a complete CSS resource. Fair enough. It is however, said to be one fast guide for those in need though.

This is not a complete resource, this is a fast resource. These are the sites that I refer to first, and that I tell people to read. When you want more, just about all of them have their own links to good sites.
Basics

* NYPL Style Guide. Start here to get your head on straight about XHTML and CSS.
* Better Living Through XHTML. Unauthorized companion to the above. XHTML, not CSS, but you want to use them together, right?
* Design Rant. My take on why CSS is necessary, if you were wondering, and how to apply it.
* Why Bother? Another, older, rant by me, if you’re still wondering. [Read the rest]