I would like to use <H1> and <H2> tags to emphasize important keywords for SEO purposes. Is it XHTML-transitional legal to enclose a <div class="blah"> tag inside an <h1> tag?
I believe it is, but why... You could just apply the class to the <h1> tag: <h1 class="blah"> or assign the style to it in your style sheet:
h1 { some-style:xxx; }
Then all <h1>'s would inherit that style...
Make sense? If you are after another result, please share.... I am curious.