HTML comments are used to add notes, explanations, or comments within your HTML code. These comments are ignored by the browser, so they don't appear on the webpage but are useful for developers and anyone who views the source code.
Syntax
HTML comments are written as:
<!-- This is a comment -->
Key Points:
- Start with
<!--: This indicates the beginning of the comment. - End with
-->: This marks the end of the comment. - Invisible to Users: Comments are not rendered by the browser; they are for the developer's reference only.
- Can span multiple lines: Comments can be written over multiple lines for easier readability, like this:
<!--
This is a multi-line comment.
It can span across several lines.
The browser will ignore everything within these tags.
-->
Example:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>HTML Comments</title>
</head>
<body>
<!-- This is a simple comment before a heading -->
<h1>Welcome to HTML Comments!</h1>
<p>This paragraph explains what comments are in HTML.</p>
<!--
The following section contains a comment
explaining the next part of the code.
-->
<div>
<p>This is inside a div tag.</p>
</div>
</body>
</html>
Uses of Comments:
- Explanation of code: To describe sections of your HTML, making the code easier to understand for others.
- To disable code: Temporarily disable sections of the code during testing or development without deleting them.
- To leave reminders or TODOs: Adding notes for yourself or others working on the code.
Note: Be cautious when leaving sensitive information in comments, as they are visible to anyone who inspects the page's source code.
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