mozilla-release/layout/reftests/table-width/percent-truncation-2-ref.html

<!DOCTYPE HTML>
<html>
<head>
<title>Percent widths on table cells</title>
<style type="text/css">

table {
  border-spacing: 0;
  padding: 0;
  border: none;
  empty-cells: show;
}

td {
  border: none;
  padding: 0;
}

</style>
</head>
<body>

<table><tr height="50">
<td style="background:yellow" ><div style="width:200px"></div></td>
<td style="background:aqua"   ><div style="width:200px"></div></td>
<td style="background:fuchsia"><div style="width:100px"></div></td>
<td style="background:blue"   ></td>
</tr></table>

</body>
</html>