I list below all topic groups, which I have done according to subjects, which they handle. You can return to this topic group by using this menu and the link Table of topic groups on the top of the each page.
You can get additional information about HTML, some XML-based languages and CSS related matters also from the following help pages of plugins menus for the HTML editor HTML-Kit. They don't belong to the CSS-pages but especially CSS-tables can think as extra pages for the CSS-pages. Look at the content page. At some parts mixed pages give additional information about Web-designing.
A warning. All teachers might make mistakes and use incorrect definitions. This concerns also my pages. I have found for example in the pages of Microsoft such invalid definitions, which could easy to make according to existing standards. The most reliable sources are official specifications. If you find any erroneous information in my pages, send an e-mail to me.