Introduction to CSS

This article is not meant to teach you Cascading Style Sheets. If you are looking for a CSS tutorial, you should start with the previous link or try the Free CSS Class. In this article you will learn the basics of CSS2 and how it differs from Cascading Style Sheets, level 1.

Cascading Style Sheets, level 2, supports all of the functionality of CSS1. This means that if you create a CSS1 style sheet, it will work in a user agent that understands CSS2. Plus, the way that CSS1 is written, if you write a CSS2 style sheet, and load it in a CSS1-only user agent, that agent will simply ignore the elements and properties that it doesn't recognize.