$('slider').slick({
vertical:true,
infinite: true,
prevArrow: '',
nextArrow: '<button type="button" class="slick-down"><img src="img/down.png"></button>'
});
.menu__link:after {
...
}
.menu__item:hover > .menu__link:after {
display:none;
}
var step = 22;
var obj = 2;
$("#sliderul").animate({marginLeft: "-"+step*obj+"px"}, 500);