<!doctype html>
<meta charset="utf-8">
<link rel="help" href="https://html.spec.whatwg.org/#the-details-and-summary-elements">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1804925">
<link rel="match" href="details-revert-ref.html">
<style>
  summary {
    display: revert;
    counter-increment: revert;
    list-style: revert;
  }
</style>
<details>
  <summary>Example</summary>
</details>
<details open>
  <summary>Example</summary>
</details>
