// The following code is based off a toggle menu by @Bradcomp // source: https://gist.github.com/Bradcomp/a9ef2ef322a8e8017443b626208999c1 (function() { var burger = document.querySelector('.burger'); var menu = document.querySelector('#'+burger.dataset.target); burger.addEventListener('click', function() { burger.classList.toggle('is-active'); menu.classList.toggle('is-active'); }); })();