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<html>
<head>
<style>
  * {
      margin: 0;
      padding: 0;
  }
  header {
      background-color:rgba(33, 33, 33, 0.9);
      color:#ffffff;
      display:block;
      font: 14px/1.3 Arial,sans-serif;
      height:50px;
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      z-index:5;
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</style>
</head>
<body>
  <div style="width: 350px;">
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    <label for="enable">
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    <label for="summary">
      Top summary (changing requires a refresh)
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</body>
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