<!DOCTYPE html>

<html>
<head>
    <style>
    .box {
        height: 200px;
        width: 200px;
        margin: 10px;
        border: 1px solid black;
    }
    .middle {
        position: absolute;
        transform: translateZ(0);
        transform-style: preserve-3d;
    }
    
    .clipping {
        position: absolute;
        overflow: hidden;
    }
    
    .composited {
        transform: translateZ(0);
    }
    </style>
    <script>
        if (window.testRunner)
            testRunner.dumpAsText();
    </script>
</head>
<body>
    <div class="middle box">
        <div class="clipping box">
            <div class="composited box">
                This test should not assert in debug builds.
            </div>
        </div>
    </div>
</body>
</html>