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# Cascading Style Sheets buttons

You are welcome to add the CSS buttons below to pages that uses style sheets providing that the following guidelines are met:

## Usage

1. You may only use buttons fetched from the URLs listed below.
2. The buttons must not be used in any manner which implies W3C sponsorship or endorsement of your product, service, or internet site.
3. The buttons may not be used to disparage W3C, its Member organizations, services, or products.
4. The logo must be an active link to http://www.w3.org/Style/CSS/Buttons

http://www.w3.org/Style/CSS/Buttons/cssos

http://www.w3.org/Style/CSS/Buttons/mwcos

http://www.w3.org/Style/CSS/Buttons/cssom

The “Valid CSS!” button has extra rules:

If you use this last button, you are claiming that your page's CSS style sheets have been checked for correctness. Go to the CSS validator and test your page: it will tell you whether you can use this logo and if so, how.

## Alternative buttons

The set of buttons below are partly transparent so that they “adapt” to the environment. Get it? The three buttons are rendered on different background colors below:

The URLs for the above buttons are are (from left to right) http://www.w3.org/Style/CSS/Buttons/cssts, http://www.w3.org/Style/CSS/Buttons/mwcts and http://www.w3.org/Style/CSS/Buttons/csstm.

Logo design by Verso [link back to 1997] with W3C staff.

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Last updated Fri 10 Oct 2014 03:06:33 PM CEST

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