XHTML

HTML has gone through several revisions to add new features and make it more consistent.
XHTML is a standardized version of HTML that uses pure XML syntax:
- Looks just like regular HTML in most respects.
- All elements must be formally closed (e.g., must specify </p>).
- Elements must nest hierarchically.
- All attributes must have explicit values: instead of <select name="state" disabled>, specify <select name="state" disabled="disabled">
There is a DTD for XHTML, so you can validate XHTML with any XML validator, such as xmlvalid.

Sample XHTML

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//
    DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/
    DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
    xml:lang="en" lang="en">
  <head>
    <title>Hello World</title>
  </head>
  <body>
    <p>
    Hello world!
    </p>
  </body>
</html>

4. Attributes

Web Technology

Notes

Show the following:

Adjust appearance:

XHTML

Annotate