document.addEventListener('DOMContentLoaded', function () {
const toggles = document.querySelectorAll('.qr-toggle-button');
toggles.forEach(button => {
button.addEventListener('click', function () {
const qrArea = this.nextElementSibling;
qrArea.style.display =
qrArea.style.display === 'none' || qrArea.style.display === ''
? 'block'
: 'none';
});
});
});
