test2 - 문서 자료실 <script> (function () { var toggle = document.getElementById('attach-toggle'); var panel = document.getElementById('attach-panel'); toggle.addEventListener('click', function (e) { e.stopPropagation(); panel.classList.toggle('open'); }); document.addEventListener('click', function (e) { if (!panel.contains(e.target)) panel.classList.remove('open'); }); })(); </script>