How to Write a CSS Rule
http://www.cssnewbie.com/how-to-write-a-css-rule/

Glazebrook, Rob L.
CSSnewbie
2008

Abstract:

The syntax of CSS is extremely simple to understand. A CSS file is essentially a list of rules. And each of those rules is comprised of two basic parts: a selector and one or more declarations. Each declaration also consists of two parts: a property and a value.