<html style="-webkit-writing-mode: horizontal-bt;">
<head>
    <style>
        body {
            margin: 0;
        }
        .origin {
            position: absolute;
            top: 0;
            left: 0;
            width: 10px;
            height: 10px;
            background-color: blue;
        }
        
        #indicator {
            position: absolute;
            left: 0;
            top: -500px;
            width: 100px;
            height: 100px;
            background-color: green;
        }
    </style>
    <script>
    function runTest()
    {
        document.scrollingElement.scrollTop = -500;
    }
    
    window.addEventListener('load', runTest, false);
    </script>
</head>
<body>
    <div class="origin"></div>
    <div id="indicator"></div>
    <div id="result"></div>
</body>
</html>