chromium/src/third_party/blink/web_tests/fast/multicol/under-scroll.html - manifest_repos/chromium_src - Git at Google

 <!doctype HTML>
 <style>
 #target::-webkit-scrollbar {
     display: none;
 }
 </style>
 <div id=target style="overflow: scroll; width: 300px; height: 200px;">
   <div style="columns: 2; width: 200px; height: 100px">
     <div style="width: 100px; height: 100px; background: lightblue"></div>
     <div style="width: 100px; height: 100px;  background: lightgray"></div>
   </div>
   <div style="width: 100px; height: 300px"></div>
 </div>
 <script>
 target.scrollTop = 50;
 </script>
	<!doctype HTML>
	<style>
	#target::-webkit-scrollbar {
	display: none;
	}
	</style>
	<div id=target style="overflow: scroll; width: 300px; height: 200px;">
	<div style="columns: 2; width: 200px; height: 100px">
	<div style="width: 100px; height: 100px; background: lightblue"></div>
	<div style="width: 100px; height: 100px; background: lightgray"></div>
	</div>
	<div style="width: 100px; height: 300px"></div>
	</div>
	<script>
	target.scrollTop = 50;
	</script>