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<html><body><h1>The HTML Dialog Object</h1><h2>The show() and close() Methods</h2><p>Click the buttons to show and close a dialog window.</p><p><button onclick="showDialog()">Show dialog</button><button onclick="closeDialog()">Close dialog</button></p><dialog id="myDialog">This is a dialog window</dialog><script>const dialog = document.getElementById("myDialog"); function showDialog() { dialog.show(); } function closeDialog() { dialog.close(); } </script></body></html>