When 'overflow: visible' is set on the viewport it is interpreted as 'auto' but is still returns a computed value of 'visible'." />
        <style type="text/css">
            body
            {
                width: 500in;
                height: 500in;
            }
            html
            {
                overflow: visible;
            }
            #result
            {
                border: 1px solid blue;
            }
        </style>
    </head>
    <body>
        <p>Test passes if the page