A scrolling mouse icon

from http://www.biennale-design.com/saint-etienne/2017/fr/home/

$(document).ready(function() {
	var timer_mouse_icon = setInterval(function() { loopsMouseIcon(); }, 1400);
});
	
function loopsMouseIcon() {
	$('#mouse_scroll').stop().animate({'top':24,'opacity':0},1200,function() {
		$(this).css({'top':4,'opacity':1});
	});
	$('#mouse_scroll_large').stop().animate({'top':192,'opacity':0},1200,function() {
		$(this).css({'top':32,'opacity':1});
	});
}