What's wrong with my slick slider?

Question

css

test3.prospekt.pro

Where Banks Partners put a slider, but it is not visible....

<div class="yak_row6" id="partners">
    <div class="centerBlock">
      <p class="blockTitle">Банки-партнёры</p>
      <div class="slider-partners">					
        <div class="slider-partners__slide"><img src="img/banks/1.png" alt="">1</div>
        <div class="slider-partners__slide"><img src="img/banks/2.png" alt="">2</div>
        <div class="slider-partners__slide"><img src="img/banks/3.png" alt="">3</div>
        <div class="slider-partners__slide"><img src="img/banks/4.png" alt="">4</div>
        <div class="slider-partners__slide"><img src="img/banks/5.png" alt="">5</div>
      </div>
    </div>
  </div>

$('.slider-partners').slick({
  prevArrow: '<div class="y_prevArrow"><div>',
  nextArrow: '<div class="y_nextArrow"></div>',
  slidesToShow: 1,
  infinite: true,
  arrows: false,
});