HTML5 vs HTML4 - h1 tag rendered with extra space - how to remove?

Question

I took a page whose DTD was HTML4 Transitional and changed the doctype to and extra space appeared between the h1 and div beneath it. I

Answer 1

Have you applied a CSS reset http://meyerweb.com/eric/tools/css/reset/ to your css before you start applying any other css effects?