HTML

For an example of HTML, just do View Source on this page. Or any other page.

XHTML

Here is a simple XHTML document with the .xhtml extension, and the same document with the .html extension.

XML

Here is the unadorned novel example--no DTD or CSS..

DTD

Here is the external DTD for the novel with external DTD example.

Here is the novel with an internal DTD.

CSS

Here is the novel with external style sheet but no DTD.
Here is the same as above, but with some Unicode characters.

Here is the novel with this external style sheet and external DTD.

Here is the novel with internal DTD and the same external style sheet.

Here is an exceptionally ugly HTML page with lots of CSS.

JavaScript

Factorials, along with a very simple form.