Headings, Lines, Comments part 1

HTML Headings



HTML includes six levels of headings, which are ranked according to importance. 
These are <h1><h2><h3><h4><h5>, and <h6>.

The following code defines all of the headings:
<html>
<head>
<title>first page</title>
</head>
<body>
<h1>This is heading 1</h1>
<h2>This is heading 2</h2>
<h3>This is heading 3</h3>
<h4>This is heading 4</h4>
<h5>This is heading 5</h5>
<h6>This is heading 6</h6>
</body>
</html>
Try It Yourself

Result:
It is not recommended that you use headings just to make the text big or bold, because search engines use headings to index the web page structure and content.

Comments