HTML headers help define structure to your web page by highlighting important topics.
Headings play 2 big roles in the web.
There are 6 types of headings.
<h1>Heading 1</h1> <h2>Heading 2</h2> <h3>Heading 3</h3> <h4>Heading 4</h4> <h5>Heading 5</h5> <h6>Heading 6</h6>
The bigger the number gets, the smaller the size of the heading and shows the least importance.