HTML Comments

HTML Comments

HTML Comment Tags

  • Comment tags are used to insert comments in the HTML source code.
  • You can add comments to your HTML source by using the following syntax :
<!-- Write your comments here -->

Notice that there is an exclamation point (!) in the opening tag, but not in the closing tag.

Note : Comments are not displayed by the browser, but they can help document your HTML source code.

With comments you can place notifications and reminders in your HTML :

Example

<!DOCTYPE html>
<html>
<body>

<!-- This is a comment -->
<p>This is a paragraph.</p>
<!-- Comments are not displayed in the browser -->

</body>
</html>
Click here to Run the Program

Comments are also great for debugging HTML, because you can comment out HTML lines of code, one at a time, to search for errors :

Example

<!DOCTYPE html>
<html>
<body>

<!-- Do not display this at the moment
<img border="0" src="w3professors.png" alt="W3Professors">
-->

</body>
</html>
Click here to Run the Program

Conditional Comments

You might stumble upon conditional comments in HTML :

<!--&#91;if IE 9&#93;>
    .... some HTML here ....
<!&#91;endif&#93;-->

Conditional comments defines some HTML tags to be executed by Internet Explorer only.