Leo theme mega menu dropdown hover effect

[apsara]

hi, i'm using leo theme mega menu. i want to add slide down & slide up effect on dropdown menu.  i'm using bootstrap solution but it's not working on very first hover.and second hover slide down work. but slide up not working on few time hover over on the same menu item.

	$( '.megamenu li.dropdown').hover(function() {
		$(this).find('.dropdown-menu').first().slideDown(300);
	}, function() {
		$(this).find('.dropdown-menu').first().slideUp(600);
	});

 here i'm using code.

[hajusinuyo]

same here..

[apsara]

anyone..??