Cascading Style Sheets (CSS)
Although HTML5 provides some capabilities for controlling a document’s presentation, it’s better not to mix presentation with content.
Cascading Style Sheets (CSS) are used to specify the presentation, or styling, of elements on a web page (e.g., fonts, spacing, sizes, colors, positioning).
CSS was designed to style portable web pages independently of their content and structure.
By separating page styling from page content and structure, you can easily change the look and feel of the pages on an entire website, or a portion of a website, simply by swapping out one style sheet for another.
CSS3 is the current version of CSS under development. Copyright © Pearson, Inc. 2013. All Rights Reserved.