Appendix A. HTMLXHTML Quick Reference

Appendix A. HTML/XHTML Quick Reference

HTML and XHTML are markup languages that define the structure, rather than the format, of the elements of your documents. XHTML, is the latest version of that language, is more restrictive than previous versions.

Tip

This appendix is based on the information provided in the XHTML Specification W3C Recommendation of January 26, 2000 and revised on August 1, 2002. The latest versions of these standards can be found at http://www.w3.org/TR/html/.

To make the information readily accessible, this appendix organizes HTML elements by their function in the following order:

• Required elements

• Text phrases and paragraphs

• Text formatting elements

• Lists

• Links

• Tables

• Frames

• Embedded content

• Style

• Forms

• Scripts

The elements are listed alphabetically within each section, and the following information is presented:

• Usage A general description of the element.

• Attributes Lists the attributes of the element with a short description of their effect.

• Notes Relates any special considerations when using the element.

Caution

Several elements and attributes of HTML have been deprecated by the current XHTML specification. They have been outdated and you should avoid using them. Those deprecated elements and attributes have been eliminated in this appendix.

Following this, the common attributes and intrinsic events are summarized.