chromium/third_party/blink/web_tests/fast/block/margin-collapse/015.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
<html lang="en">
 <head>
  <title>Margin Collapsing: in flow (position of collapsed-through element)</title>
  <style type="text/css">
   table { border-spacing: 0; font-size: 50px; border: solid; background: red; }
   td { padding: 0; }
   /* test */
   .test { background: orange; width: 1em; }
   .test .a { background: yellow; margin: 0 0 1em 0; height: 1em; }
   .test .b { background: red; margin: 2em 0 0 0; }
   .test .c { background: aqua; margin: 3em 0 0 0; height: 1em; }
   .test .d { background: lime; margin: 0; position: absolute; height: 1em; width: 1em; }
   /* control */
   .control div { width: 1em; }
   .control .a { border-top: 1em yellow solid; }
   .control .b { border-top: 2em orange solid; }
   .control .c { border-top: 1em lime solid; }
   .control .d { border-top: 1em aqua solid; }
  </style>
 </head>
 <body>
  <p>The following two columns should be pixel perfect identical with no red visible.</p>
  <table>
   <tr>
    <td class="test">
     <div class="a"></div>
     <div class="b">
      <div class="d"></div>
     </div>
     <div class="c"></div>
    </td>
    <td class="control">
     <div class="a"></div>
     <div class="b"></div>   
     <div class="c"></div>
     <div class="d"></div>
    </td>
   </tr>
  </table>
  <p>This test is meaningless if you don't pass <a href="006.html#">test 006</a>.</p>
 </body>
</html>