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<!DOCTYPE html>
<html>
  <link rel='stylesheet' href='resource://reftest/progress.css'>
  <style>
    div.progress-element { padding: 5px; }
    body > div:nth-child(1)  { -moz-appearance: none; }
    body > div:nth-child(2) > .progress-bar { -moz-appearance: none; }
    body > div:nth-child(3)  { background-color: red; }
    body > div:nth-child(4) > .progress-bar { background-color: red; }
    body > div:nth-child(5)  { border: 2px solid red; }
    body > div:nth-child(6) > .progress-bar { border: 5px solid red; }
  </style>
  <body>
    <div class="progress-element">
      <div class="progress-bar"></div>
    </div>
    <div class="progress-element">
      <div class="progress-bar"></div>
    </div>
    <div class="progress-element">
      <div class="progress-bar"></div>
    </div>
    <div class="progress-element">
      <div class="progress-bar"></div>
    </div>
    <div class="progress-element">
      <div class="progress-bar"></div>
    </div>
    <div class="progress-element">
      <div class="progress-bar"></div>
    </div>
  </body>
</html>