<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
<html lang="en">
<head>
<title>Margin Collapsing: in flow (height, control) - not really margin collapsing</title>
<style type="text/css">
table { border-spacing: 0; font-size: 50px; border: solid; background: red; }
td { padding: 0; width: 1em; background: red; }
.a .container { height: 1em; background: red; }
.a .sized { height: 3em; margin: 0; background: aqua; }
.a .after { height: 1em; margin: 0 0 1em 0; background: yellow; }
.b .a { border-top: solid aqua 1em; }
.b .b { border-top: solid yellow 1em; }
.b .c { border-top: solid aqua 1em; }
</style>
</head>
<body>
<p>There should be no red on this page.</p>
<table>
<tr>
<td class="a">
<div class="container">
<div class="sized"></div>
</div>
<div class="after"></div>
</td>
<td class="b">
<div class="a"></div>
<div class="b"></div>
<div class="c"></div>
</td>
</tr>
</table>
<p>See also <a href="019.html#">test 019</a>, <a href="020.html#">test 020</a>.</p>
</body>
</html>