css/cssom/insertRule-from-script.html

<!doctype html>
<head>
  <meta charset="utf-8">
  <title>insertrule @import test</title>
  <link rel="help" href="https://drafts.csswg.org/cssom/">
  <link rel="help" href="http://www.w3.org/TR/cssom-1/#the-cssrule-interface">
  <link rel="match" href="insertRule-from-script-ref.html">
  <style></style>
</head>
<body>
  <script>document.styleSheets[0].insertRule("@import url(\"support/black.css\");");</script>
</body>