<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            background-color: green;
            height: 100px;
        }
        p {
            color: green; /* Hide from pixel result */
        }
    </style>
    <script>
        if (window.testRunner)
            testRunner.dumpAsText(true);
    </script>
</head>
<body>
    <p>The entire viewport should be filled with green</p>
</body>
</html>