<!DOCTYPE html>
<html>
<head>
<style>
html {
    background-image:url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='100px' height='100px'><rect width='100px' height='100px' fill='lightgreen' stroke='green' stroke-width='1px'/></svg>");
    background-repeat: repeat;
}
</style>
</head>
<body>
    Test for WK112226: This test passes if the body's background is light green with a green gridlines.
</body>
</html>