<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>

 <head>

  <title>CSS Test: Margin collapsing - margins of a 'collapsed through' box without clearance can collapse with parent block's bottom margin</title>

  <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins">
  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
  <link rel="author" title="Daniel Schattenkirchner" href="crazy-daniel{at}gmx.de">
  <link rel="match" href="margin-collapse-clear-016-ref.htm">

  <meta content="An element that does not have clearance applied to it can collapse its top margin with its parent block's bottom margin. Margins of a 'collapsed through' box without clearance applied to it can collapse with its parent block's bottom margin. An element with clear set to it (to other than 'none') can only create a clearance if and when there is a preceding floated block." name="assert">
  <meta content="" name="flags">

  <style type="text/css">
  body
  {
  background-color: white;
  }

  #parent-block
  {
  background-color: red;
  margin-bottom: 0px;
  }

  #sibling
  {
  background-color: green;
  height: 100px;
  }

  #element-without-clearance-applied
  {
  clear: both;
  margin-top: 100px;
  }
  </style>

 </head>

 <body>

  <p>Test passes if there is a wide filled green rectangle and <strong>no red</strong>.</p>

  <div id="parent-block">
    <div id="sibling"></div>
    <div id="element-without-clearance-applied"></div>
  </div>

  <!--
  #element-without-clearance-applied's margin-top collapses 
  with #parent-block's margin-bottom: the resulting margin-bottom 
  then collapses with the adjoining white body's margin-bottom
  -->

 </body>
</html>