About
An heading is a text feature that contains a short and prominent sentence.
It's part of an header. If not, it's the header in itself and creates implicitly a section
Its primary functions are :
- organizing a document in section
- resuming a text
- catching the eye.
Usage
Html
In HTML, an heading defined:
- a new section (the structure of the document)
- and the heading of this section
Letter
In a letter, the heading is one sentence that carries the reason of the writing.
Press
In the press, the term is known as headline.
Scope
A heading may summarize a section. ie:
- the whole page
- a chapter
- or just a component