title: Which HTML elements can't contain child nodes?
body: <p>I've been looking for an exhaustive list, but can't find one anywhere. To avoid having to trawl through the specs, does anyone know what they are (and I suppose a complementary list of elements that can contain children would be useful too).</p>
  
  <p>And how much does this list vary between XHTML 1 and HTML5?</p>