Introduction to HTML/XHTML

XHTML Conformance

  1. Must obey the XHTML DTDs.
  2. Root element must be html.
  3. The html must contain an xmlns pointing to the the XHTML namespace.
    <html xmlns="" xml:lang="en" lang="en">
  4. A DOCTYPE must appear before the html and point to the appropriate XHTML DTD.
  5. Cannot override any parameter entities in the DTD.

José M. Vidal .

15 of 19