app.js

//Select element function 
const selectElement = function (element) {
    return document.querySelector(element);
};

let menuToggler = selectElement('.menu-toggle');
let body = selectElement('body');

menuToggler.addEventListener('click', function () {
    body.classList.toggle('open');
});

//Scroll reveal
window.sr = ScrollReveal();

sr.reveal('.animate-left', {
    origin: 'left', 
    duration: 1000, 
    distance: '25rem', 
    delay: 300
});

sr.reveal('.animate-right', {
    origin: 'right', 
    duration: 1000, 
    distance: '25rem', 
    delay: 600
});

sr.reveal('.animate-top', {
    origin: 'top', 
    duration: 1000, 
    distance: '25rem', 
    delay: 600
});

sr.reveal('.animate-bottom', {
    origin: 'bottom', 
    duration: 1000, 
    distance: '25rem', 
    delay: 600
});