document.addEventListener('DOMContentLoaded', function() { document.querySelectorAll('.note-toggle').forEach(function(toggleButton) { var content = toggleButton.nextElementSibling; var isHidden = content.style.display === 'none'; toggleButton.setAttribute('aria-expanded', !isHidden); toggleButton.addEventListener('click', function() { var expanded = this.getAttribute('aria-expanded') === 'true'; this.setAttribute('aria-expanded', !expanded); content.style.display = expanded ? 'none' : 'block'; }); }); });