<!DOCTYPE html>

<html>
<head>
    <style>
        .container {
            position: absolute;
            width: 400px;
            height: 400px;
            background: gray;
            overflow: hidden;
            z-index: 1;
        }
        
        .clipping {
            position: absolute;
            z-index: 3;
            left: 50px;
            top: 50px;
            width: 300px;
            height: 300px;
            background: url('../resources/simple_image.png');
            background-size: 100% 100%;
        }
        
        .inner {
            position: absolute;
            top: 50px;
            left: 50px;
            height: 200px;
            width: 200px;
            background-color: green;
        }
        
        .composited {
            -webkit-transform: translateZ(0);
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="clipping">
            <div class="inner composited"></div>
        </div>
    </div>
<pre id="layers">Layer tree goes here in DRT</pre>
</body>
</html>