ion: relative;
  }
  .abs {
    position: absolute;
  }
  .fixed {
    position: fixed;
    height: 100%;
    width: 100%;
    top: -100px;
    background:green;
  }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="height: 100px; width: 100px; background: red;"></div>
<div class="multicol" id="outer">
  <div class="multicol" id="inner">
    <div class="rel">
      <div class="abs">
        <div class="fixed"></div>
      </div>
    </div>
  </div>
</div>