chromium/third_party/blink/web_tests/external/wpt/css/css-tables/box-shadow-001.html

<!DOCTYPE html>
<title>Collapsed borders and box-shadow</title>
<link rel="author" title="David Grogan" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-tables-3/#in-collapsed-borders-mode">
<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#box-shadow">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<link rel="bookmark" href="https://crbug.com/1006241" />
<meta name="assert" content="box-shadow size and location on a cell with collapsed borders are calculated correctly" />

<style>
table {
  border-collapse: collapse;
}

/* Make the green box-shadow start at the inner edge of the border to cover up all the red.
   Chrome's bug made the box-shadow start further toward the center. */
td {
  border: 20px solid green;
  box-shadow: inset 60px 0px green;
  /* The properties after the blank line aren't the focus of the test. */

  background: red;
  line-height: 0px;
  padding: 0px;
}

td > span {
  display: inline-block; /* chrome only hits this bug when the td children are inline */

  height: 60px;
  width: 60px;
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<table>
  <tr>
    <td><span></span></td>
  </tr>
</table>