W3Schools

home HOME

XHTML Tutorial
XHTML HOME
XHTML Introduction
XHTML Why
XHTML v HTML
XHTML Syntax
XHTML DTD
XHTML HowTo
XHTML Validation
XHTML Modules
XHTML Attributes
XHTML Events
XHTML Summary

Quiz/Exam
XHTML Quiz
XHTML Exam

References
XHTML Tag List
XHTML Attributes
XHTML Events
XHTML Colornames
XHTML ASCII
XHTML Entities
XHTML URL Encode
HTTP Messages

Selected Reading
Web Statistics
Web Glossary
Web Hosting
Web Quality

W3Schools Forum

Helping W3Schools

XHTML - Why?

previous next

XHTML is a combination of HTML and XML (EXtensible Markup Language).

XHTML consists of all the elements in HTML 4.01 combined with the syntax of XML.


Why XHTML?

We have reached a point where many pages on the WWW contain "bad" HTML.

The following HTML code will work fine if you view it in a browser, even if it does not follow the HTML rules:

<html>
<head>
<title>This is bad HTML</title>
<body>
<h1>Bad HTML
</body>

XML is a markup language where everything has to be marked up correctly, which results in "well-formed" documents.

XML was designed to describe data and HTML was designed to display data. 

Today's market consists of different browser technologies, some browsers run Internet on computers, and some browsers run Internet on mobile phones and hand helds. The last-mentioned do not have the resources or power to interpret a "bad" markup language.

Therefore - by combining HTML and XML, and their strengths, we got a markup language that is useful now and in the future - XHTML.

XHTML pages can be read by all XML enabled devices AND while waiting for the rest of the world to upgrade to XML supported browsers, XHTML gives you the opportunity to write "well-formed" documents now, that work in all browsers and that are backward browser compatible !!!


previous next


Ektron CMS400.NET Ektron - What do you want your website to do?
The Ektron Intranet
Take the video tour

The Ektron Intranet lets you do everything you need to do on your corporate intranet and everything you want to do... all with just one application.

What can you do with the Ektron Intranet?

Ektron

Navigate through content, documents, assets, colleagues and workgroups quickly and intuitively with enterprise search

Ektron

Communicate with friends and colleagues with forums, message boards and corporate blogging using the new Social Networking Platform

Ektron

Utilize the extensive out-of-the box features or customize your site through Ektron CMS400.NET's open architecture

Ektron

Promote collaboration in your organization through project workspaces where others can efficiently find information and work together

Ektron

Author/edit content, manage navigation, menus, audit trails, workflow and approvals with the best in breed Content Management

See why there are 20,000+ Ektron integrations worldwide.

Take the Video Tour TAKE THE VIDEO TOUR
Take the Video Tour or download a FREE TRIAL today.



Jump to: Top of Page or HOME or Printer Friendly Printer friendly page

W3Schools provides material for training only. We do not warrant the correctness of its contents. The risk from using it lies entirely with the user. While using this site, you agree to have read and accepted our terms of use and privacy policy.

Copyright 1999-2008 by Refsnes Data. All Rights Reserved.

Validate Validate W3C-WAI level A conformance icon W3Schools was converted to XHTML in December 1999