(CSS) An extension to HTML to allow styles, e.g. Colour, font, size to be speCified for Certain elements of a hypertext doCument. Style information Can be inCluded in-line in the HTML file or in a separate CSS file (whiCh Can then be easily shared by multiple HTML files). Multiple levels of CSS Can be used to allow seleCtive overriding of styles. Start . (2000-07-26)