Ok, I don't think I disagree that much. Was more just curious on what you meant. I view the structure as already something happening to describe things in ways that facilitate styling. But, this is a lot like the distinction between attributes and children in XML. I think people give it a little more thought than it warrants.

To that end, I think I can get behind the idea of "if you are going to use classes anyway, might as well use them for all of it." That is, having some that are done by structure and some that are done by class seems to be the a dangerous mix.