<!DOCTYPE HTML>
<html>
<head>
<style>
canvas {
background-color: gray;
border-radius: 40px 200px 10px 200px;
padding: 10px;
margin: 20px;
border: 5px solid red;
box-shadow: 0 0 8px 8px #888;
}
</style>
</head>
<body>
<h3>It passes if:</h3>
<ul>
<li>the canvas element has 8px gray shadow around</li>
<li>the canvas content has rounded corners</li>
</ul>
<canvas id="theCanvas" width="257" height="257"></canvas>
<script>
if (window.internals) {
internals.runtimeFlags.accelerated2dCanvasEnabled = true;
}
var context = theCanvas.getContext('2d');
context.fillStyle = 'green';
context.fillRect(0, 0, theCanvas.width, theCanvas.width);
</script>
</body>
</html>