overlay.classList.remove
class Modal {
constructor(overlay) {
this.overlay = overlay;
const closeButton = overlay.querySelector('.button-close')
closeButton.addEventListener('click', this.close.bind(this));
overlay.addEventListener('click', e => {
this.close();
});
}
open() {
this.overlay.classList.remove('is-hidden');
}
close() {
this.overlay.classList.add('is-hidden');
}
}