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Comments

Comments are used to add explanatory notes or prevent the browser from interpreting parts of the style sheet.

Comments can be placed where ever white space is allowed within a style sheet.

Syntax

/* Comment */

Examples

/* A single line comment */

/*
A comment
which stretches
over several
lines
*/

Notes

The /* */ comment syntax is used for both single and multi line comments. There is no other way to specify comments in external style sheets. However, when using the <style> element, you may use <!-- --> to hide CSS from older browsers, although this is not recommended. As in most programming languages that use the /* */ comment syntax, comments cannot be nested. In other words, the first instance of */ that follows an instance of /* closes the comment.

Specifications

See also

© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/Comments