This element represent headings from the highest to lowest rank.
<h1>Heading level 1</h1>
<h2>Heading level 2</h2>
<h3>Heading level 3</h3>
<h4>Heading level 4</h4>
<h5>Heading level 5</h5>
<h6>Heading level 6</h6>
This element represents a collection of metadata for the Document.
<html lang="en">
<head>
This is the HEAD element
</head>
</html>
This element represents the "header" of a document or section of a document. The header element is typically used to group a set of h1–h6 lements to mark up a page's title with its subtitle or tagline.
<header class="class-name" id="header-id-name" role="banner">
This is a HEADER element
</header>
This element represents a paragraph-level thematic break.
<hr>
This element represents the root of an HTML document.
<html lang="en">
This is the HTML element
</html>