app.js

let navInfo = document.querySelector(".nav-info");
let menuIcon = document.querySelector(".menu-icon");

let menu = true;

menuIcon.addEventListener('click', () => {
    if (menu) {
        menuIcon.innerHTML = '<span><svg stroke="currentColor" fill="currentColor" strokeWidth="0" viewBox="0 0 352 512" xmlns="http://www.w3.org/2000/svg"><path d="M242.72 256l100.07-100.07c12.28-12.28 12.28-32.19 0-44.48l-22.24-22.24c-12.28-12.28-32.19-12.28-44.48 0L176 189.28 75.93 89.21c-12.28-12.28-32.19-12.28-44.48 0L9.21 111.45c-12.28 12.28-12.28 32.19 0 44.48L109.28 256 9.21 356.07c-12.28 12.28-12.28 32.19 0 44.48l22.24 22.24c12.28 12.28 32.2 12.28 44.48 0L176 322.72l100.07 100.07c12.28 12.28 32.2 12.28 44.48 0l22.24-22.24c12.28-12.28 12.28-32.19 0-44.48L242.72 256z"></path></svg></span>';
        menu = !menu;
        navInfo.style.maxHeight = 'none';
        navInfo.style.padding = '5vh 0';
    } else {
        menuIcon.innerHTML = '<span><svg stroke="currentColor" fill="currentColor" strokeWidth="0" viewBox="0 0 448 512" xmlns="http://www.w3.org/2000/svg"><path d="M16 132h416c8.837 0 16-7.163 16-16V76c0-8.837-7.163-16-16-16H16C7.163 60 0 67.163 0 76v40c0 8.837 7.163 16 16 16zm0 160h416c8.837 0 16-7.163 16-16v-40c0-8.837-7.163-16-16-16H16c-8.837 0-16 7.163-16 16v40c0 8.837 7.163 16 16 16zm0 160h416c8.837 0 16-7.163 16-16v-40c0-8.837-7.163-16-16-16H16c-8.837 0-16 7.163-16 16v40c0 8.837 7.163 16 16 16z"></path></svg></span>';
        menu = !menu;
        navInfo.style.maxHeight = '0';
        navInfo.style.padding = '0';
    }
});