W3C CSS Stylesheet Validator
W3C CSS Validator
» Validate your Style SheetThis free service offered by the World Wide Web Consortium (W3C ®) checks Cascading Style Sheets (CSS) in (X)HTML documents or standalone for conformance to W3C recommendations.
To show your readers that you've taken the care to create an interoperable Web page, you may display this icon on any page that validates. Here is the HTML you could use to add this icon to your Web page:
<p> <a href="http://jigsaw.w3.org/css-validator/"> <img style="border:0;width:88px;height:31px" src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!"> </a> </p>
Also available with extra options in the Advanced Interface.
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