In order to keep up with (or try to) the rapidly changing world of HTML, we present
here the changes between HTML 3.2 and HTML 4.0. HTML 4.0 introduces eight new elements,
deprecates ten (more about deprecation in a bit), and makes obsolete three more.
Frames, formerly only found in the browser versions of HTML, join the official fold.
Tables provide better tabular presentation; forms more readily respond to the needs
of the disabled; style sheets provide for better formatting and presentation; and
multimedia, scripting, and printing are improved. And, as if that weren’t enough,
HTML 4.0 uses a different character-encoding format that expands the number of alphabets
and languages able to implement Web documents.
Let’s start with the changes to single tags first, then move on to the topics,
like tables, that encompass more than an individual tag.
from Special Edition Using HTML 4:
Appendix A
What’s New in HTML 4.0
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