Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/external/wpt/css/css-backgrounds/fieldset-inset-shadow.html 

<!doctype html>
<title>inset box shadow works on fieldset</title>
<link rel=help href="https://drafts.csswg.org/css-backgrounds/#box-shadow">
<link rel=help href="https://bugzilla.mozilla.org/show_bug.cgi?id=1750276">
<link rel=author title="Emilio Cobos Álvarez" href="mailto:[email protected]">
<link rel=author title="Mozilla" href="https://mozilla.org">
<link rel=match href="fieldset-inset-shadow-ref.html">
<style>
  fieldset {
    width: 100px;
    height: 100px;
    border: none;
    margin: 0;
    box-sizing: border-box;
    box-shadow: 0 0 0 10px inset black;
  }
</style>
<fieldset></fieldset>