Single table solution.
Now don't down-vote me.
I know this is not an answer to the original question.
I posted this answer because the OP requested it in a comment to the original question.
The Challenge
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It is valid XHTML 1.0 Transitional and I've included Dr. Suess character :)
By stripping Dr. Suess character, the declaration, the meta-tags and the summary attribute you could cut it down to 929 characters and still be valid XHTML 1.0 Transitional.
Edit
As requested, XHTML 1.0 Strict
The Challenge
970 non-whitespace characters, orange background, Dr. Suess's Grinch removed.