Header elements
- title
- style
- script
Body elements
- image
- text
- anchor
- paragraph and div
- span
- list
  - list item
- iframe
- table
  - liquid design
- horizontal line
- legacy formatting
  - non-wrapping lines
- Interactive elements
  - text entry
  - text area
  - password
  - button
  - check-box
  - radio buttons
  - drop-down list
  - selector
- Forms
  - GET and PUT
Multi-frame documents
- frameset and frame