$(document).on('ready', function() {
  $(".vertical-center-3").slick({
    autoplay: true,
    autoplaySpeed: 0,
    speed: 5000,
    cssEase: "linear",
    vertical: true,
    verticalSwiping: true,
    slidesToShow: 4,
    arrows: false,
    responsive: [
      {
        breakpoint: 768,
        settings: {
          vertical: false,
          verticalSwiping: false,
          slidesToShow: 2
        }
      }
    ]
  });
});