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HTML <!--...--> Tag


An HTML comment:

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

<p>This is a paragraph.</p>
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Definition and Usage

The comment tag is used to insert comments in the source code. Comments are not displayed in the browsers.

You can use comments to explain your code, which can help you when you edit the source code at a later date. This is especially useful if you have a lot of code.

Browser Support

<!--...--> Yes Yes Yes Yes Yes

Tips and 笔记

You can use the comment tag to "hide" scripts from browsers without support for scripts (so they don't show them as plain text):

<script type="text/javascript">
function displayMsg() {
  alert("Hello World!")

Note: The two forward slashes at the end of comment line (//) is the JavaScript comment symbol. This prevents JavaScript from executing the --> tag.

Standard Attributes

The comment tag does not support any standard attributes.

More information about Standard Attributes.

Event Attributes

The comment tag does not support any event attributes.

More information about Event Attributes.

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