PUBLIC MARKS from rmaltete with tags référence & html

If you're a web developer, you've probably heard about XHTML, the markup language developed in 1999 to implement HTML as an XML format. Most people who use and promote XHTML do so because they think it's the newest and hottest thing, and they may have heard of some (usually false) benefits here and there. But there is a lot more to it than you may realize, and if you're using it on your website, even if it validates, you are probably using it incorrectly.

This page contains the 252 allowed entities in HTML 4 and XHTML 1.0, as outlined in section 24 of the official HTML 4 specifications, published by the W3C. If you're new to this site, you can find help on how to use this reference.

ASCII character codes html octal hex decimal charts

Les règles à suivre pour passer de la syntaxe HTML à la norme XHTML.