third_party/WebKit/LayoutTests/css2.1/20110323/dynamic-top-change-004.htm

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
   2 <html>
   3  <head>
   4   <title>CSS Test: Inheriting 'top' changes from abspos parent</title>
   5   <link rel="author" title="Boris Zbarsky" href="mailto:bzbarsky@mit.edu">
   6   <link rel="reviewer" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
   7   <link rel="help" href="http://www.w3.org/TR/CSS21/cascade.html#value-def-inherit">
   8   <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#position-props">
   9   <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-position">
  10   <meta name="flags" content="dom">
  11   <meta name="assert" content="The position of a positioned element which inherits its 'top' value from its parent changes when the parent's 'top' value is changed.">
  12   <style type="text/css">
  13     .testDiv { width: 100px; height: 100px; }
  14     #green { top: 4em; background: green; position: absolute; }
  15     #red { top: inherit; background: red; position: relative; }
  16     #parent { position: absolute; }
  17   </style>
  18   <script type="text/javascript">
  19     window.onload = function() {
  20       document.body.offsetWidth;
  21       document.getElementById("parent").style.top = "2em";
  22     }
  23   </script>
  24  </head>
  25  <body>
  26    <p>There should be no red.</p>
  27    <div id="parent">
  28      <div id="red" class="testDiv"></div>
  29    </div>
  30    <div id="green" class="testDiv"></div>
  31  </body>
  32 </html>