Introduction

Cascading Style Sheets (CSS) were introduced by the World Wide Web Consortium to help determine the layout of an HTML document. Removing the formatting from the HTML document allows you to quickly apply a style to a whole site, rather than going through each document and changing the tags that represent the style. It also means that the content of the HTML document isn't bloated by extra information about how data is to be presented. The current specification for using style sheets, Cascading Style Sheets, level 2, may be found at the World Wide Web Consortium's site.

Unfortunately, support for Cascading Style sheets vary amongst browsers. To check for compatibility, see Eric A. Meyer's Master Compatibility Chart.