Tutorials - (X)HTML and CSS
(X)HTML and CSS tutorials, from basic to advanced techniques
(X)HTML and CSS
Macon State College XHTML/CSS Tutorial - An in-depth tutorial aimed towards college students. This tutorial will teach you how to get a basic Web site up and running.(X)HTML
Tizag - HTML Tutorial - Learning is easy with this detailed, very visual tutorial (it actually covers XHTML), and examples are provided for each concept.W3Schools XHTML Tutorial - Nice tutorial with tips and advice on how to avoid common mistakes.
CSS - Basic
Tizag - CSS Tutorial - Nice detailed tutorial with many samples. There is also a CSS reference sheet hereW3Schools CSS Tutorial - Very detailed tutorial that covers both the basics and more advanced CSS. The Try-It-Yourself feature is very useful for a beginner - it allows you to play with code and see the results. There is also a CSS Reference Sheet here
Webmonkey - Mulders Stylesheet Tutorial - A detailed, multi-part tutorial covering all aspects of CSS.
CSS - Advanced
GUIStuff - CSS - Nice selection of articles explaining selectors, floats, lists, links and other CSS techniques. A nice CSS 2.1 Reference sheet can be found here.A List Apart - This site includes a large selection of articles on CSS, with techniques, tips and other topics
Max Design - This site includes "Listamatic," tutorials for styling a huge variety of lists, Floatutorial, which covers floats and floating layouts, and Selectutorial, which covers CSS selectors.