<!doctype html>
<title>CSS test reference</title>
<style>
td {
  padding: 0;
}

table {
  border-spacing: 0;
  border: 1px solid black;
  background: green;
  padding: 5px;
}
div {
  width: 5px;
  height: 5px;
}
</style>
<table>
  <tr>
    <td><div></div></td>
  </tr>
</table>
