You have to be more careful as to how you build up your code and which elements you nest within another. Some combinations of nesting elements are forbidden. This article currently has a rating of 4.33 out of 12 total ratings. Article ratings encourage evolt contributors to keep writing the good stuff. On that, nothing on the page will render.
Opera is fine.
This led to my comment about XML declarations and Mac IE 4.0. However, I suspect that the majority of Evolters already realise that HTML is a markup application, and that there are rules about nesting and quoting attributes. This is not the case for Tag Soup. Trnasformations and repurposing are not a doddle with bad markup. I don't know how a doctype could possibly be related to this quirk, but it exists nonetheless - and it took me a long time to track it down, because you usually don't search for display errors outside your actual code.