XHTML Introduction

From http://www.w3schools.com (Copyright Refsnes Data)

# Introduction To XHTML

XHTML is a stricter and cleaner version of HTML.

## What You Should Already Know

Before you continue you should have a basic understanding of the following:

- HTML and the basics of building web pages

If you want to study HTML first, please read our HTML tutorial.

## What Is XHTML?

- XHTML stands for EXtensible HyperText Markup Language
- XHTML is almost identical to HTML 4.01
- XHTML is a stricter and cleaner version of HTML
- XHTML is HTML defined as an XML application
- XHTML is a W3C Recommendation

## XHTML is a W3C Recommendation

XHTML 1.0 became a W3C Recommendation January 26, 2000.

Stay updated with the latest W3C recommendations in our W3C tutorial.

## All New Browsers Support XHTML

XHTML is compatible with HTML 4.01.

All new browsers have support for XHTML.

## W3Schools Has Converted To XHTML

XHTML is a reformulation of HTML 4.01 in XML, and can be put to immediate use with existing browsers by following a few simple guidelines.

W3Schools was completely rewritten to XHTML 1.0 in 1999.

A click on this symbol: validates the XHTML part of this page.

A click on this symbol: validates the CSS part of this page.

## About This Tutorial

The next chapters of this tutorial will explain:

- Why you should use XHTML
- The syntax of XHTML
- How W3Schools was converted to XHTML
- XHTML validation
- XHTML modularization

From http://www.w3schools.com (Copyright Refsnes Data)