HTML Code
<!DOCTYPE html>
<html lang=en>
<head>
  <meta charset=UTF-8>
  <meta name=viewport content="width=device-width,initial-scale=1">
  <title>show() Non-Modal dialog</title>
  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .5rem;font-size:1.25rem;color:#0f172a}.note{margin:0 0 1rem;font-size:.875rem;color:#64748b;max-width:420px}.toolbar{display:flex;gap:.5rem;flex-wrap:wrap}.toolbar button{padding:.5rem 1rem;border:none;border-radius:6px;background:#2563eb;color:#fff;cursor:pointer;font:inherit}dialog{border:1px solid #bfdbfe;border-radius:10px;padding:1rem 1.25rem;max-width:280px;margin:1rem 0 0;box-shadow:0 8px 24px rgba(37,99,235,.15);background:#eff6ff}dialog p{margin:0 0 .75rem;color:#1e3a8a}dialog form button{padding:.4rem .8rem;border:none;border-radius:6px;background:#1e40af;color:#fff;cursor:pointer;font:inherit}.page-content{margin-top:1.25rem;padding:1rem;background:#fff;border:1px solid #e2e8f0;border-radius:8px;max-width:420px}</style>
</head>
<body>
  <h1>Non-modal dialog</h1>
  <p class=note><code>show()</code> opens a dialog without a backdrop — you can still interact with the page.</p>
  <div class=toolbar>
    <button type=button id=showBtn>Show panel</button>
    <button type=button id=closeBtn>Close panel</button>
  </div>

  <dialog id=infoPanel>
    <p><strong>Tip:</strong> Non-modal dialogs work well for tool palettes and inline helpers.</p>
    <form method=dialog>
      <button>Dismiss</button>
    </form>
  </dialog>

  <div class=page-content>
    <p>This page content stays interactive while the non-modal dialog is open.</p>
  </div>

  <script>const panel=document.getElementById("infoPanel");document.getElementById("showBtn").addEventListener("click",()=>panel.show()),document.getElementById("closeBtn").addEventListener("click",()=>panel.close())</script>
</body>
</html>
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Non-Modal dialog with show()
