A CSS (cascading style sheet) file allows you to separate your web sites (X)HTML content from it’s style. As always you use your (X)HTML file to arrange the content, but all of the presentation (fonts, colors, background, borders, text formatting, link effects & so on…) are accomplished within a CSS. You’ve heard the buzz about the separation of style from content, but you are stuck in the world of nested tables and deprecated markup. If so, you have come to the right place! Using CSS to style your (X)HTML files, will benefit you and your visitors in many ways. The website cssbasics.com has a free online book for you to learn everything you want to know about the basics of CSS.