<!DOCTYPE html>
<html>
<head>
<style type="text/css">
div {
width: 100px;
height: 100px;
background-color: green;
}
</style>
</head>
<body>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div></div>
<div></div>
<div></div>
</body>
</html>