<!DOCTYPE HTML>
<html>
<style>
div {
width: 400px;
height: 400px;
background-color: lime;
}
</style>
<body>
<p>The test passes if you see an yellow square inside a green one.</p>
<div>
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="400px" height="400px">
<rect x="100" y="100" width="200" height="200" style="fill: red; mix-blend-mode: difference"/>
</svg>
</div>
</body>
</html>