Example
Text prefixed with one to six pound signs (hash symbols, #) becomes a header <h1> through <h6>, according to how many pound signs were used.
# This is a first-level (`<h1>`) header
## This is a second-level (`<h2>`) header
### And so on.
This is a first-level (
<h1>) headerThis is a second-level (
<h2>) headerAnd so on.
Atx-style headers may be optionally closed by adding trailing pound signs, which are ignored.
### This is a header with some trailing hashes ###
This is a header with some trailing hashes
At present Stack Exchange's flavor of markdown only seems to support up to three header levels (###), though Markdown supports all the way up to 6.
