The one thing I cannot distill from the spec is what the (default) display type is for all the elements.
In theory I think Phrasing Content should be inline, and Flow should be block, right? But the problem with this is, that ALL Phrasing Content is also Flow Content. It also doesn't work to look explicitly at the Content as ABBR for example can only contain Phrasing (and could be inline as it was in HTML4), but P and PRE can also only contain Phrasing, and those could be block (as it was in HTML4)
So how does one determine the display type?