css/css-multicol/multicol-scroll-content.html

<!DOCTYPE html>
<title>CSS Test: Multi-column element with scrolled content</title>
<link rel="help" href="http://www.w3.org/TR/css3-multicol/#columns"/>
<link rel="match" href="multicol-scroll-content-ref.html"/>
<div style="columns: 2; width: 200px; height: 100px; column-gap: 0">
  <div style="overflow: scroll; height: 150px; background: red">
    <div style="width: 400px; height: 400px; background: green; position: relative"></div>
  </div>
</div>
<div style="columns: 2; width: 200px; height: 100px; column-gap: 0">
  <div style="height: 100px"></div>
  <div style="overflow: scroll; height: 150px; background: red">
    <div style="width: 400px; height: 400px; background: green; position: relative"></div>
  </div>
</div>