A Level 1 Heading describes its enclosing context (such as the page itself). On the page level, this may end up being redundant with the page title and depending on how content is expanded within templates may be omitted.
The h1 element defines level 1 headings.
Level 1 Headings can be defined using a line with starts with a
single #.
These may also be defined by following the text with a line
consisting of at least 3 =s.