<!DOCTYPE html>
<p>Test passes if the blue rectangle has a rounded top left corner.</p>
<div style="width: 100px; height: 100px; overflow: scroll;">
  <div style="overflow: hidden; border-radius: 25px 0 0 0; transform: translate(10px, 10px);">
    <div style="width: 50px; height: 50px; background-color: blue;"></div>
  </div>
  <div style="width: 200px; height: 1px;"></div>
</div>