The <h*> element of this heading.
The ID of this heading. Also known as the fragment. On Parsoid, this
is the html5 fragment mode (mostly Unicode characters).
The level of this heading. Goes from 1 to 6, referring to h1 to h6.
The root element of this heading. This refers to the topmost element
related to this heading, excluding the <section> which contains it.
The title of this heading. This is the actual text that the reader can
see, and the actual text that matters. Unsupported syntax, such as using
<math> templates in the heading, may not work.
The type of this heading.
A parsed wikitext heading.