I appreciate this post! I was hoping you would add an inline CSS style sheet to take care of the broken defaults. I only remember one off the top of my head, the rule for monospace font size. You need something like:

   code, pre, tt, kbd, samp {
     font-family: monospace, monospace;
   }

But I vaguely remember there are other broken CSS defaults for links, img tags, and other stuff. An HTML 5 boilerplate guide should include that too, but I don't know of any that do.