<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
<html>
<head>
<style>
div {
  width: 100px;
  height: 100px;
}

.green {
  background-color: green;
}

.red {
  background-color: red;
}

.absolute {
  position: absolute;
  top:100px;
  left:100px;
}

.relative {
  position: relative;
  top:100px;
  left:100px;
}

.overflow {
  overflow: hidden;
}
</style>
<body>
You should see a 100x100 green square below.  This test makes sure overflow uses
containing blocks when clipping.

<div class="green overflow">
  <div class="red relative">
    <div class="absolute red"></div>
  </div>
</div>