third_party/blink/web_tests/fragmentation/scrolling-contents-scroll-expected.html - manifest_repos/chromium_src - Git at Google

 <!doctype HTML>
 <style>
 ::-webkit-scrollbar {
     display: none;
 }
 </style>
 <div style="column-count: 2; width: 800px; height: 300px;">
   First column. Green should show on scroll.
   <div id="scroller" style="width: 400px; height: 250px;  overflow-y: auto;">
     <div style="width: 300px; height: 300px; background: green"></div>
   </div>
   Second column.
 </div>
	<!doctype HTML>
	<style>
	::-webkit-scrollbar {
	display: none;
	}
	</style>
	<div style="column-count: 2; width: 800px; height: 300px;">
	First column. Green should show on scroll.
	<div id="scroller" style="width: 400px; height: 250px; overflow-y: auto;">
	<div style="width: 300px; height: 300px; background: green"></div>
	</div>
	Second column.
	</div>