const fullpageEl = document.getElementById('fullpage') const menuBtn = document.querySelector('.menu__btn') const navigation = document.querySelector('.navigation') const navCloseBtn = document.querySelector('.navigation__close__btn') const blurOverlay = document.querySelector('.blur__overlay') const IS_ACTIVE = 'is--active' const toggleNavigation = () => { navigation.classList.toggle(IS_ACTIVE) blurOverlay.classList.toggle(IS_ACTIVE) fullpageEl.classList.toggle('no-scroll') } const CLICK = 'click' menuBtn.addEventListener(CLICK, toggleNavigation) navCloseBtn.addEventListener(CLICK, toggleNavigation) blurOverlay.addEventListener(CLICK, toggleNavigation) new fullpage('#fullpage', { autoScrolling: true, scrollBar: true, })