chromium/third_party/blink/web_tests/external/wpt/css/css-conditional/css-supports-046.xht

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  <title>CSS Test: A nested @supports rule with valid syntax and a passing condition must apply rules inside it</title>
  <link rel="author" title="Cameron McCormack" href="mailto:[email protected]" />
  <link rel="author" title="L. David Baron" href="mailto:[email protected]" />
  <link rel="help" href="http://www.w3.org/TR/css3-conditional/#at-supports" />
  <link rel="help" href="http://www.w3.org/TR/css3-conditional/#at-media" />
  <meta name="assert" content="An outer @media rule with an inner @supports rule must apply the rules inside the @supports only if both the @supports and @media conditions pass."/>
  <link rel="match" href="support/pass.xht" />
  <style type="text/css"><![CDATA[
    @media all {
      @supports (color: green) {
        html { background-color: green }
      }
    }
  ]]></style>
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 <body>
 </body>
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