Description

HTML Comment tag <!-- --> is used to insert comments within the HTML markup.

HTML Comments can be used for many purposes and here are some of them.

  • Source code documentation
  • Reminders for future changes or enhancements
  • Hide content temporarily while development testing

Syntax

<!-- Comment content goes here -->

Examples

Single line comment, where the comment is on a single line.

<!-- Single line comment content goes here -->

Multi-line comment, where the comment extends to multiple lines.

<!-- 
Comments line 1
Comments line 2
Comments line 3 
-->

Inline comment, where the comment is within other element's content.

<p>This paragraph <!-- Inline comment -->  has an inline comment.</p>

Attributes

The following table shows the list of supported and unsupported attributes for the tag <!-- --> used for comments.

Attribute Type Details
Tag-Specific Attributes The tag <!-- --> does not have any tag-specific attributes.
Global Attributes It doesn't support any HTML Global Attributes.
Event Attributes It doesn't support any HTML Event Attributes.

Browser Compatibility

HTML Comment <!-- ... --> is supported in most modern browsers.

  • Google Chrome 1+
  • Internet Explorer or Edge 2+
  • Firefox 1+
  • Apple Safari 1+
  • Opera 4+

Related Links