My solution was a change in the index.js
if (this.checked) {
$menu.hide().slideDown(250, function() { $menu.css(‘display’, ‘block’); });
} else {
$menu.show().slideUp(250, function() { $menu.css(‘display’, ‘none’); });
}
instead of twice ‘ ‘ as in
https://jsfiddle.net/vadikom/v1yunvvm/?utm_source=website&utm_medium=embed&utm_campaign=v1yunvvm
