app/assets/javascripts/components/modal.js
$(function () {
$('body').toggleClass('modal-open', $(this).is(':checked'));
$('.modal-fade-screen, .modal-close').on('click', function () {
$('.modal-state:checked').prop('checked', false).change();
});
$('.modal-inner').on('click', function (e) {
e.stopPropagation();
});
});