in src/assets/js/main.js [358:382]
function scrollState() {
scrollTop = $window.scrollTop();
// downscroll
if (scrollTop > trigger && scrollTop > lastScrollTop && !stateMinimized) {
stateMinimized = true;
$container.addClass('minimize').removeClass('minimize-down');
// upscroll
} else if (
scrollTop > trigger &&
scrollTop < lastScrollTop - sensitivity &&
stateMinimized
) {
stateMinimized = false;
$container.removeClass('minimize').addClass('minimize-down');
// top of page
} else if (scrollTop < trigger) {
stateMinimized = false;
$container.removeClass('minimize minimize-down');
}
lastScrollTop = scrollTop;
}