<!-- Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/ -->
<!-- This testcase has a relatively-positioned -moz-box element, which should
     form a containing block for its absolutely positioned child. Also: in
     this case, the child is taller than its container. -->
<html>
  <head>
    <style>
      .box { display: -moz-box }
      .relpos_parent {
        position: relative;
        width: 100px;
        height: 100px;
        background: lightblue;
      }
      .abspos_child {
        position: absolute;
        left: 30px;
        top: 10px;
        width: 20px;
        height: 150px;
        background: purple;
      }
    </style>
  </head>
  <body>
    <div class="box relpos_parent">
      <div class="abspos_child"></div>
    </div>
  </body>
</html>