The CSS Working Group has published CSS Color Module Level 3 as a W3C Edited Recommendation. CSS (Cascading Style Sheets) is a language for describing the rendering of HTML and XML documents on screen, on paper, in speech, etc. It uses color-related properties and values to color the text, backgrounds, borders, and other parts of elements in a document. This specification describes color values and properties for foreground color and group opacity. These include properties and values from CSS level 2 and new values. This specification incorporates errata raised against the previous W3C Recommendation for CSS Color 3. This specification is fully implemented in all modern browsers.