title: What or where is the Definition of Flow Content in HTML 5?
body: <p><a href="http://www.w3.org/TR/html5/dom.html#flow-content-1" rel="nofollow">http://www.w3.org/TR/html5/dom.html#flow-content-1</a> gives a list of Flow Content elements (3.2.5.1.2 Flow content). But other items appear to be flow but are not in said list. </p>
  
  <p>For example, the &lt;th&gt; element is described as flow by <a href="http://www.w3.org/html/wg/drafts/html/CR/tabular-data.html#the-th-element" rel="nofollow">http://www.w3.org/html/wg/drafts/html/CR/tabular-data.html#the-th-element</a>.</p>
  
  <p>So, is there a definitive list anywhere? </p>