== To Do ==
Discuss COLGROUP and COL, Tables.
Show how to place images using CSS, in Images.
Discuss aspect ratio of width and height in case that only one of the two is specified, in Images.
Show how to embed images directly into HTML, in Images.
List image types (JPEG, PNG) typically supported by browsers, in Images.
Treat SPAN and DIV elements.
Clean up and rewrite the Hyperlinks chapter. The order of parts seems to be confused.