1483946.html
<!doctype html>
<div style="width: 100px; height: 100px; overflow-y: auto; contain: layout;">
<div style="width: 200px; height: 200px; background: green"></div>
</div>
<!doctype html>
<div style="width: 100px; height: 100px; overflow-y: auto; contain: layout;">
<div style="width: 200px; height: 200px; background: green"></div>
</div>