If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:With our online editor, you can edit the CSS, and click on a button to view the result.Your message has been sent to W3Schools.We have created some responsive W3.CSS templates for you to use.Test your CSS skills at W3Schools!CSS is a language that describes the style of an HTML document.CSS describes how HTML elements should be displayed.You are free to modify, save, share, and use them in all your projects.Learn from over 300 examples! ... W3Schools is optimized for learning, testing, and training. With anexternal style sheet, you can change the look of an entire website by changing just one file!Each HTML page must include a reference to the external style sheet file inside the element, inside the head section.An external style sheet can be written in any text editor, and must be saved with a .css extension.The external .css file should not contain any HTML tags.Here is how the \"mystyle.css\" file looks like: Those comments are informational only, just as HTML comments are (although the syntax is different). < p > This paragraph is styled with CSS. ... W3Schools is optimized for learning, testing, and training.

Comments can be placed wherever white space is allowed within a style sheet. The stuff inside the /* */ marks are CSS comments. CSS comments are not displayed when the page renders in web browsers. Syntax. By design, comments have no effect on the layout of a document.

A comment in PHP code is a line that is not executed as a part of the program. A CSS comment is used to add explanatory notes to the code or to prevent the browser from interpreting specific parts of the style sheet. CSS HOME CSS Introduction CSS Syntax CSS Selectors CSS How To CSS Comments CSS Colors. CSS Comments.

Comments are ignored by browsers. Examples might be simplified to improve reading and basic understanding. Examples might be simplified to improve reading and basic understanding. ... W3Schools is optimized for learning, testing, and training. These CSS comments do not affect the visual display of a site in any way.

In this case, this comment lets someone reading the CSS file know that that particular line of CSS was intended to allow for using ems to set font size later in the CSS in a more intuitive base 10 way.

Colors RGB HEX HSL.

CSS CSS Reference CSS ... HTML comments are not displayed in the browser, but they can help document your HTML source code. Comments are used to explain the code, and may help when you edit the source code at a later date.

If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:You can add comments to your HTML source by using the following syntax:Your message has been sent to W3Schools.With comments you can place notifications and reminders in your HTML code:Comments are also great for debugging HTML, because you can comment out HTML lines of code, one at a time, to search for errors:Use the HTML comment tag to make a comment out of the "This is a comment" text.Notice that there is an exclamation point (!) A CSS comment is placed inside the