Supported tags:

Head tags
• body
  with attributes:
  • bgcolor
  • link
  • text
  • background
• title (value returned by title method)

Body tags: (body accepts attributes bgcolor, text, and link)
• anchors (local only, not network) with attributes href, name, and id
• address
• Bold
• base
• big

blockquote

• line
  breaks
• center
• cite
• code
• dir lists:
  item 1
  item 2

• definition lists

  term

  definition

• dfn, or the defining instance of a term.
• emphasis

h1

all header tags accept attributes align and src

h2

h3

h4

h5

h6

• italics
• images, with attributes src, alt, width, and height. Images may be used as links. Note: width and height only have an effect when the image can't be loaded.
• kbd
• listing
• menu lists
  item 1
  item 2
• ordered lists
  1. item 1
  2. item 2

paragraph tags, with attributes align and id

• preformat

• samp
• _subscript
• ^superscript
• small
• strong
• tt
• underline
• unordered lists, taking the attributes:
  • plain
  • src
  • dingbat
• var