<!DOCTYPE html>
<style>
::-webkit-scrollbar {
display: none;
}
#scroller {
position: relative;
z-index: 0;
width: 100px;
height: 100px;
overflow: scroll;
writing-mode: vertical-rl;
background: green;
}
</style>
<div id="scroller">
<div style="width:200px"></div>
</div>
<script>
document.getElementById('scroller').scrollLeft = -100;
</script>