css/css-conditional/css-supports-016.xht

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  <title>CSS Test: An @supports rule with valid syntax and a passing condition must apply rules inside it</title>
  <link rel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au" />
  <link rel="help" href="http://www.w3.org/TR/css3-conditional/#at-supports" />
  <meta name="assert" content="A negation of an @supports condition must pass if and only if the sub-condition fails.  The sub-condition here is a supported property name with an unsupported value."/>
  <link rel="match" href="support/pass.xht" />
  <style type="text/css"><![CDATA[
    @supports not (color: rainbow) {
      html { background-color: green }
    }
  ]]></style>
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