Cascading Style Sheets developed by World Wide Web Consortium (W3C) is a web language. It is used to add formatting and look of the web document by adding different colors, spacing and fonts to it. It is used to style different markup language documents, prominent languages being the HTML and XHTML. 3 specifications of CSS have been approved by W3C- CSS1, CSS2 and CSS3. CSS3. We use upgraded version of CSS in order to bring style to the websites and other web pages we design.