Three flavors -- three DTDs.
- XHTML 1.0 Strict
- For really clean structural mark-up, free of any markup associated with layout.
- XHTML 1.0 Transitional
- take advantage of XHTML features including style sheets but nonetheless to make small adjustments to your markup for the benefit of those viewing your pages with older browsers which can't understand style sheets. These include using
the
body element with bgcolor, text and
link attributes.
- XHTML 1.0 Frameset
- When using Frames to partition the browser window into two or more frames.