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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <title>CSS Multi-column Layout Test: multi-column and margin collapsing of first child (basic)</title>
  <link rel="author" title="Opera Software ASA" href="http://www.opera.com/" />
  <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2013-08-10 -->
  <link rel="help" href="http://www.w3.org/TR/css3-multicol/#pseudo-algorithm" title="3.4 Pseudo-algorithm" />
  <link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
  <meta name="flags" content="ahem" />
  <meta name="assert" content="This test checks that the margin-top of the first child (an inline-block) of a multi-column element (with column-fill: balance) does not collapse with its parent." />
  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
  <style type="text/css"><![CDATA[
  div#test-multi-column-red
  {
  background-color: red;
  color: white;
  font: 3.125em/1 Ahem; /* equivalent to 50px/50px Ahem */
  height: 4em;
  margin-top: 0em;
  width: 4em;

  column-count: 2;
  column-fill: balance;
  column-gap: 0em;
  }

  span
  {
  display: inline-block;
  margin-top: 2em;
  }

  div#reference-overlapping-green
  {
  background-color: green;
  bottom: 200px;
  height: 100px;
  position: relative;
  width: 100px;
  }
  ]]></style>

 </head>

 <body>

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

  <div id="test-multi-column-red">
    <span>ab cd</span>
	ef gh ij kl
  </div>

  <div id="reference-overlapping-green"></div>

  <!--

  Expected result (before the overlapping):

  *********************
  | margin- |   ef    |
  | top red |         |
  | back    |   gh    |
  | ground  |         |
  *********************
  |   ab    |   ij    |
  |         |         |
  |   cd    |   kl    |
  |         |         |
  *********************

  -->

 </body>
</html>