<!DOCTYPE html>
<html>
<head>
<style>
html {
background-color: green;
}
body {
background-color: #0F0;
height: 100px;
}
p {
color: #0F0; /* Hide from pixel result */
}
</style>
</head>
<body>
<p>Should see a 100px tall light green rect on a field of green.</p>
</body>
</html>