xHTML

Transitional vs. Strict

Elements/Attributes not allowed in xHTML Strict

  • font
  • center
  • iframe
  • strike
  • u
  • s
  • dir
  • noframes
  • align
  • target
  • language (script)
  • background
  • bgcolor
  • noshade
  • border (allowed in table)
  • height (allowed in img and object)
  • width (allowed on img, object, table, col, and colgroup)
  • nowrap
  • text (body)
  • alink (body)
  • vlink (body)
  • link (body)
  • vspace

For more, go to:

http://24ways.org/advent/transitional-vs-strict-markup

http://liorean.web-graphics.com/xhtml/comparison.loose-strict.html

http://www.zvon.org/xxl/xhtmlReference/Output/comparison.html