<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
 <head>
  <link rel="reference" href="support/ref-green-box-100x100.xht">
  <title>CSS Test: Percent heights inside anonymous blocks</title>
  <link rel="author" title="Boris Zbarsky" href="mailto:bzbarsky@mit.edu">
  <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#anonymous-block-level">
  <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#containing-block-details">
  <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#the-height-property">
  <meta name="assert" content="Anonymous block boxes are ignored when resolving         percentage values that would refer to it: the closest non-anonymous         ancestor box is used instead.">
  <style type="text/css">
    #parent { height: 200px; position: relative; }
    #child { float: left; height: 50%; width: 100px; background: green; position: relative }
    #background { position: absolute; top: 0; left: 0; width: 100px; height: 100px; background: red }
  </style>
 </head>
 <body>
   <p>There must be a green square below and no red.</p>
   <div id="parent">
     <div id="background"></div>
     <div id="child"></div>&nbsp;<div></div>
   </div>
 </body>
</html>