Acronym for: Cascading Style Sheets
A formatting system for web pages. It allows for clearer positioning of page elements such as pictures and text, more control over text color and size, and can decrease page-load time by making one file responsible for the formatting of many web pages. One of the major advantages of keeping the formatting information in one file, is the separation of formatting and actual content. This makes it easier to add or remove content later, without worrying about formatting.
The term "cascading" refers to the way style rules in one or more CSS file(s) is applied to an entire Web hierarchy.
- "Cascading Style Sheets are a simple way to add style (e.g. fonts, colors, spacing) to web documents." from w3c.
Most modern web browsers such a Mozilla, Internet Explorer, Opera, or Konqueror support CSS, although their support level differs. Generally Mozilla and Opera is thought to have the most complete CSS implementation at the time of writing. Most developers, however, write CSS code for Internet Explorer as it is the most popular. This practice may lead to Web pages that look different than intended in other browsers.