We've seen quite a few CSS examples in this chapter. When you get more serious about CSS, you're going to need very in-depth information. For that reason, the rest of this chapter covers the most commonly used CSS styles and their formal specifications.
The World Wide Web Consortium (W3C) CSS style specifications give the possible values that CSS properties can take, the default value of those properties, and so on. The syntax that the W3C specifications use is a little complex. Here's an example: the style specification for the background-color property:
CSS1 values: <color>|transparent
CSS2 values: inherit
Default value: transparent
Element support: All elements
Browser support: [IE4, IE5, ...