Here’s a link to the latest DZone Refcard which provides a good overview of key CSS3 features and how to code them. Refcardz in general are well done handy references. Here’s an index of all Refcardz. In order to download Refcardz you will need to create a basic account, but don’t worry, you will only receive emails when new Refcardz are released. It’s well worth it.