- XHTML stands for EXtensible HyperText Markup Language
- XHTML is aimed to replace HTML
- 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 1.0 became a W3C Recommendation January 26, 2000. W3C defines XHTML as the latest version of HTML. XHTML will gradually replace HTML.
XHTML is compatible with HTML 4.01, and all new browsers have support for 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