Alphabetical list of all CSS properties from the Cascading Style Sheets 2 (CSS2) specification. The CSS properties are listed alphabetically to help you quickly find the property you're looking for, or to find out whether it exists or not.
CSS properties are used to apply styles to structured documents, such as those created with HTML or XML. Note that not all browsers/user agents support all CSS properties, so you should try to test your pages in as many browsers as you can.
The W3C is currently working on the next level of CSS - CSS3. Here's a list of CSS3 properties. These are some of the new properties that are being introduced to CSS.