<html>
<head>
    <title>Test for http://bugs.webkit.org/show_bug.cgi?id=15994</title>
    <style type="text/css">
        div {
            overflow: hidden;
        }
        div, span {
            height: 100px;
            width: 100px;
            display: block;
        }
        span.blue {
            padding: 100px 0 0 0;
            background: blue;
        }
    </style>
</head>
<body>
    <div style="background: green;"><span id="t1">&nbsp;</span></div>
    <div style="position: relative; margin: -100px 0 0 100px; background: red;"><span id="t2" class="blue">&nbsp;</span></div>
</body>
</html>