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+++ b/layout/reftests/w3c-css/received/css-multicol-1/multicol-span-all-margin-nested-002.xht
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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: vertically adjacent spanning elements with nested margins (complex)</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/" /> <!-- 2013-08-19 -->
+  <link rel="help" href="http://www.w3.org/TR/css3-multicol/#column-span" title="6.1. '-moz-column-span'" />
+  <link rel="match" href="multicol-span-all-margin-nested-001-ref.xht" />
+  <meta name="flags" content="ahem" />
+  <meta name="assert" content="In this test, the first h4 element would collapse its margin bottom with the resulting (from a margin collapsing with its nested h4 element) of top margin of div#child if only div#child was also a spanning element, which is not: the bottom margin of the first h4 element is 8em wide while the top margin of div#child is only 2em wide (1 column box wide). That is why the bottom margin of the first h4 element should not collapse with the top margin of div#child." />
+<style type="text/css"><![CDATA[
+@font-face {
+  font-family: Ahem;
+  src: url("../../../fonts/Ahem.ttf");
+}
+]]></style>
+  <style type="text/css"><![CDATA[
+  div#multi-column
+  {
+  background-color: yellow;
+  border: gray solid 1em;
+  color: navy;
+  font: 1.25em/1 Ahem;
+  orphans: 1;
+  overflow: hidden;
+  widows: 1;
+  width: 8em;
+
+  -moz-column-count: 4;
+  -moz-column-gap: 0em;
+
+  /*
+
+  N == 4;
+
+  W == 2em;
+
+  */
+  }
+
+  h4, div#child
+  {
+  background-color: black;
+  color: black;
+  font: inherit;
+  margin: 1em 0;
+  }
+
+  div#child {margin: 1em 0 0;}
+
+  h4
+  {
+  width: 11em;
+
+  -moz-column-span: all;
+  }
+  ]]></style>
+ </head>
+ <body>
+
+  <div id="multi-column">
+    na vy na vy
+    na vy na vy
+
+    <h4 id="first">black</h4>
+
+    <div id="child">
+      <h4 id="nested">black</h4>
+    </div>
+
+    na vy na vy
+    na vy na vy
+  </div>
+
+ </body>
+</html>
+\ No newline at end of file