//accordion
window.onload = function () {

const menu = document.querySelectorAll('.js-accordion-btn');

console.log(menu);
function toggle() {
const parent = this.parentElement;
this.classList.toggle('is-active');
parent.classList.toggle('is-open');
}
for (let i = 0; i < menu.length; i++) {
    menu[i].addEventListener('click', toggle);
}

};