At CSS Creator I have added a list of CSS Properties, selectors and the browsers that support them. This is actually a rework of the original CSS properties list in a more useful format. Now you can see the earliest version of each popular web browser that supports the CSS property or Selector. It should be easier to use and maintain as in general once a browser supports a particular property then it will continue to do so.
In the future I plan to continue adding more CSS3 properties and the browsers that support them.
Hope you find it useful.