fieldset-legend-background-shadow-border-radius.html

<!DOCTYPE html>
<fieldset style="background: blue; box-shadow: 10px 10px; border-radius: 1px; border: 2px solid; width: 200px; height: 50px">
  <legend style="width: 100px; height: 20px; background-color: yellow"></legend>
</fieldset>

chromium/third_party/blink/web_tests/paint/background/fieldset-legend-background-shadow-border-radius.html