Introduction to CSS3 – Part 1: What Is It?

This article marks the first of several, providing an introduction to the new CSS3 standard which is set to take over from CSS2. We will be starting from the very beginning – taking you from not having even heard of CSS3, to feeling ready to hit it running as various features start to become more widely adopted.

http://designshack.co.uk/tutorials/introduction-to-css3-part-1-what-is-it