open-nested-details-ref.html

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<!DOCTYPE html>

<!-- Any copyright is dedicated to the Public Domain.

   - http://creativecommons.org/publicdomain/zero/1.0/ -->

<html>

  <body>

    <details open>

      <summary>outer summary</summary>

      <details open>

        <summary>inner summary</summary>

        <p>inner details</p>

        <details open>

          <summary>inner most summary</summary>

          <p>inner most details</p>

        </details>

      </details>

      <p>outer details</p>

    </details>

  </body>

</html>