CSS

CSS (or, fully, Cascade Style Sheets; hereinafter, CSS) is the style-sheet language that serves as one of three cornerstones for the World Wide Web (WWW). To display any webpage that belongs to WWW, nearly every web browser and every major web browser provides support to three webpage languages. HTML is a markup language that forms the webpage skeleton, CSS allows for graphic consistency within one or several pages, and JavaScript is a programming language that makes everything that the first two languages don't. That "everything" includes overriding of HTML and/or CSS.