I've bought several CSS books over the years but the only reference I use consistently is the actual CSS specification from the World Wide Web Consortium: http:

I've bought several CSS books over the years but the only reference I use consistently is the actual CSS specification from the World Wide Web Consortium: http://www.w3.org/TR/REC-CSS2/ http://www.w3.org/TR/REC-CSS2/ Also, it's free and you can keep a copy of the PDF on your computer and search it when you need something specific. It's more conversational and has more illustrations than most internet spec documents. However it doesn't tell you what parts of CSS aren't implemented correctly by specific browsers or give thorough examples. The W3C HTML and HTTP documents are really good too: http://www.w3.org/Protocols/rfc2616/rfc2616.html http://www.w3.org/Protocols/rfc2616/rfc2616.html http://www.w3.org/TR/html4/ http://www.w3.org/TR/html4/