<!DOCTYPE html>
<html>
<body>
<p>Click the button to scroll the document window by 100px vertically.</p>
<button onclick="scrollWin()" style="position:fixed;">Click me to scroll vertically!</button>
<br><br>
<p>Some text and line breaks to enable scrolling!</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL SCROLL</p>
<br>
<br>
<script>
function scrollWin() {
window.scrollBy(0, 100);
}
</script>
</body>
</html>