HTML Heading used to define title and subtitle with in HTML  page.

Headings are defined with in <h1> to <h6> tags.

Example:

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Page Title</title>
</head>
<body>
    <h1>Tutorialsonweb Heading 1</h1>
    <h2>Tutorialsonweb Heading 2</h2>
    <h3>Tutorialsonweb Heading 3</h3>
    <h4>Tutorialsonweb Heading 4</h4>
    <h5>Tutorialsonweb Heading 5</h5>
    <h6>Tutorialsonweb Heading 6</h6>
</body>
</html>