http://www.w3.org/MarkUp/Guide/Advanced.html Having mastered the basics, it is time to move on to more advanced features. The following will teach you how to: - force line breaks - introduce non-breaking spaces - use entities for special characters - link into the middle of pages - use preformatted text - flow text around images - define clickable regions within images - create tables - use roll-overs and other tricks - enable users to listen to sound files