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chromium/third_party/blink/web_tests/fast/table/table-in-table-percent-width-collapsing-border-quirks-mode.html 

<html>
<body>
<!-- https://bugs.webkit.org/show_bug.cgi?id=72180 : CSS table with 100% width overflow their container block -->
<!-- The test passes if the inner table has 2 separate borders in all corners. -->
<div style='display:table; border: 1px solid black; width: 500px; height: 500px; padding: 10px;'>
  <div style='display:table-row; border: 1px solid red;'>
    <div style='display:table-cell; border: 1px solid blue;'>
      <div style='display:table; border-collapse: collapse; border: 1px solid green; width: 100%; height: 100%; padding: 10px; box-sizing: border-box; -moz-box-sizing: border-box;'>
        <div style='display:table-row; border: 1px solid cyan;'>
          <div style='display:table-cell; border: 1px solid magenta;'>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>
</body>
</html>