XHTMLpedia: a browsable guide to the XHTML DTDs

Introduction

XHTMLpedia is a guide that provides the contents of XHTML DTDs in a browsable way, much easier to understand than the actual DTDs. I'm still working on it to provide more information, improve readability and enhance the presentation style, but the basic content is already available. Try it!

If you are looking for a way to translate your HTML files into XHTML automatically, try html2xhtml.

If you want to check the well-formedness and validity of your XHTML documents, try the W3C HTML/XHTML markup validation service.

Browse the XHTMLpedia

Select the XHTML version that you need, and start to browse!

• XHTML 1.0 Transitional
• XHTML 1.0 Frameset
• XHTML 1.0 Strict
• XHTML 1.1
• XHTML Basic 1.0
• XHTML Basic 1.1
• XHTML Mobile Profile
• XHTML Print 1.0

XHTML specifications

If you need more information about XHTML and its versions, read the official specifications and DTDs:

• XHTML 1.0: The Extensible HyperText Markup Language (Second Edition). A Reformulation of HTML 4 in XML 1.0 (W3C Recommendation 26 January 2000, revised 1 August 2002)
• Modularization of XHTML (W3C Recommendation 8 October 2008)
• XHTML Basic 1.1 (W3C Recommendation 29 July 2008)
• XHTML 1.1 - Module-based XHTML (W3C Recommendation 31 May 2001)
• XHTML Print 1.0 (W3C Recommendation 20 September 2006)
• XHTML Mobile Profile Specification (PDF)

XHTMLpedia displays information based on the versions of the official W3C DTDs. From time to time, W3C releases new versions of those DTDs with bug fixes and changes due to the development of new versions of the recommendations. The version currently displayed by XHTMLpedia is based on the DTDs available on March 26 2009.