chromium/third_party/blink/web_tests/compositing/overflow/empty-composited-child-of-border-radius-ancestor-expected.html

<style>
.outermost {
  border: 4px solid #000;
  border-radius: 40px;
  width: 200px;
  height: 200px;
  overflow: hidden;
}

</style>

<div class="outermost">
</div>