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Cascading Style Sheets home page

What is CSS?

Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g., fonts, colors, spacing) to Web documents.

These pages contain information on how to learn and use CSS and on available software. They also contain news from the CSS working group.

High­lights

News (Also available as Atom news feed.)

For more news, see our syndicator “The Future of Style.”

Suggest a link ✉︎

Stan­dards & drafts (Also available as Atom news feed.)

Some of the specifications and drafts by the CSS Working Group:

Com­pleted work Sta­tus Up­com­ing Notes ℹ⃝
CSS Snapshot 2023 NOTE Latest stable CSS ℹ⃝
CSS Snapshot 2022 NOTE ℹ⃝
CSS Snapshot 2021 NOTE ℹ⃝
CSS Snapshot 2020 NOTE ℹ⃝
CSS Snapshot 2018 NOTE ℹ⃝
CSS Snapshot 2017 NOTE ℹ⃝
CSS Snapshot 2015 NOTE ℹ⃝
CSS Snapshot 2010 NOTE ℹ⃝
CSS Snapshot 2007 NOTE ℹ⃝
CSS Color Level 3 REC REC ℹ⃝
CSS Namespaces REC REC ℹ⃝
Selectors Level 3 REC REC ℹ⃝
CSS Level 2 Revision 1 REC REC See Errata ℹ⃝
Media Queries Level 3 REC REC ℹ⃝
CSS Style Attributes REC REC ℹ⃝
CSS Cascading and Inheritance Level 3 REC REC ℹ⃝
CSS Fonts Level 3 REC REC ℹ⃝
CSS Writing Modes Level 3 REC REC ℹ⃝
CSS Basic User Interface Level 3 REC REC ℹ⃝
CSS Box Model Level 3 REC REC ℹ⃝
CSS Containment Level 1 REC REC ℹ⃝
Sta­ble drafts Sta­tus Up­com­ing Notes ℹ⃝
CSS Backgrounds and Borders Level 3 CRD CR ℹ⃝
CSS Conditional Rules Level 3 CR CR ℹ⃝
CSS Multi-column Layout Level 1 CR PR ℹ⃝
CSS Values and Units Level 3 CR PR ℹ⃝
CSS Flexible Box Layout Level 1 CR PR ℹ⃝
CSS Counter Styles Level 3 CR PR ℹ⃝

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Working group news (Also available as Atom news feed.)

The working group regularly publishes reports on its blog; here are the most recent:

[Photo: group photo in San Francisco]

A part of the CSS WG in May 2016.

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Join­ing the dis­cus­sion

The <www-style@w3.org> mailing list is the place for discussing the further development of CSS. (The CSS working group also uses that list for most discussions.) Everybody can subscribe (or unsubscribe, or see instructions.)

If you work for a W3C member organization, you can also join the working group.

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Soft­ware (Also available as Atom news feed.)

Nearly all browsers nowadays support CSS and many other applications do, too. To write CSS, you don't need more than a text editor, but there are many tools available that make it even easier.

Of course, all software has bugs, even after several updates. And some programs are further ahead implementing the latest CSS modules than others. Various sites describe bugs and work-arounds.

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Learn­ing CSS (Also available as Atom news feed.)

For beginners, Starting with HTML + CSS teaches how to create a style sheet. For a quick introduction to CSS, try chapter 2 of Lie & Bos or Dave Raggett's intro to CSS. Or see examples of styling XML and CSS tips & tricks.

Another page also has some books, mailing lists and similar fora, and links to other directories.

The history of CSS is described in chapter 20 of the book Cascading Style Sheets, designing for the Web, by Håkon Wium Lie and Bert Bos (2nd ed., 1999, Addison Wesley, ISBN 0-201-59625-3)

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A song

[Still from the song's video with the text ‘watch out!!’]

CSS inspired ‘quayjn’ to write the song ‘CSS is OK’.

Bert Bos, style activity lead
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