top {
    position: absolute;
    top: 0;
    left: 0;
    background-color: green;
    width: 100px;
    height: 100px;
  }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="outer">
  <div id="bottom">
    <img height="200">
  </div>
  <div id="top"></div>
</div>
