wpt / css / CSS2 / floats-clear / margin-collapse-024.xht

Status: PASS | Duration: 8ms | Subtests: 1/1 | Open test on wpt.live | Open ref on wpt.live | wpt.fyi

TestRefTest SourceRef Source

/css/CSS2/floats-clear/margin-collapse-024.xht

<!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 Test: Margin collapsing - in-flow block-level margin adjoining child's margin</title>
        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
        <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins" />
        <link rel="match" href="margin-collapse-024-ref.xht" />

        <meta name="flags" content="ahem image" />
        <meta name="assert" content="When an in-flow block-level element (#div3) is adjoining its in-flow block-level child's top margin and the child has no top border, no top padding or no clearance applied to it, then such top margins collapse." />
        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
        <style type="text/css">
            div
            {
                font: 20px/1em Ahem;
                width: 5em;
            }
            #div1
            {
                background: url('support/margin-collapse-2em-space.png');
                height: 4em;
            }
            #div2, #div4
            {
                background: green;
                height: 1em;
            }
            #div3
            {
                background: red;
            }
            #div3, #div4
            {
                margin-top: 2em;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is no red.</p>
        <div id="div1">
            <div id="div2"></div>
            <div id="div3">
                <div id="div4"></div>
            </div>
        </div>
    </body>
</html>

/css/CSS2/floats-clear/margin-collapse-024-ref.xht

<!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 Reftest Reference</title>
  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />

  <style type="text/css"><![CDATA[
  div
  {
  background-color: green;
  height: 1.25em;
  margin: 1em 0em 2.5em;
  width: 6.25em;
  }
  ]]></style>

 </head>

 <body>

  <p>Test passes if there is no red.</p>

  <div></div>

  <div></div>

 </body>
</html>