Also referred to simply as CSS, Cascading Style Sheets are used to define the look and feel of a website outside of the actual HTML of the site. In recent years, CSS has replaced tables and other HTML-based methods for formatting and laying out websites. The benefits of using CSS are many, but some of the most important are the simplification of a site’s HTML files, which can actually increase search engine rankings and the ability to completely change the style of a site by changing just one file without having to make changes to content. The latest version is CSS3.
