Headings are defined with the <h1> to <h6> tags.
Example:
<h1>MY HTML Size 36</h1><h2>MY HTML Size 30</h2>
<h3>MY HTML Size 24</h3>
<h4>MY HTML Size 18 </h4>
<h5>MY HTML Size 16</h5>
<h6>MY HTML Size 12/14</h6>
Output:
MY HTML Size 36
MY HTML Size 30
MY HTML Size 24
MY HTML Size 18
MY HTML Size 16
MY HTML Size 12/14
Most important <h1> tag, this use for your website Heading for on page SEO.
