<html>
<head>
<style>
body {
height: 7500px;
width: 5000px;
}
button {
position: fixed;
}
</style>
</head>
<body>
<p>Click one of the buttons (multiple times) to scroll the document window.</p>
<p>Look at each scrollbar to see the effect.</p>
<button onclick="scrollWin(0, 50)">Scroll down</button><br><br>
<button onclick="scrollWin(0, -50)">Scroll up</button><br><br>
<button onclick="scrollWin(100, 0)">Scroll right</button><br><br>
<button onclick="scrollWin(-100, 0)">Scroll left</button><br><br>
<script>
function scrollWin(x, y) {
window.scrollBy(x, y);
}
</script>
</body>
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</html>