HTML 3.0 This extension of Hypertext Markup Language expands the original HTML specification, which was pretty basic and allowed documents to contain only one column of text, a little formatting, and a few graphics. Developed by the World Wide Web Consortium and Web software developers, HTML 3.0 offers enhanced graphics capabilities and enables Web-page designers to put in tables and frames and to flow text around figures. To read documents written in HTML 3.0 you must have a browser that supports it. See also: HTML