CSS is a new recommendation from the World Wide Web Consortium, W3C, that allows you more control over the look and layout of your HTML documents. The document you came from uses CSS to enhances the presentation.
Using CSS, you can influence:
You can insert style sheets into documents or link to an external style sheet (referenced by a URL) that can influence many documents simultaneously.
Among the benefits of using CSS are:
CSS is implemented to date in several browsers, including Microsoft Internet Explorer 3, and Netscape Navigator 4.
For more information on CSS, its specification, tutorials and examples, see the CSS resource page.