.slick-prev,
.slick-next
{
    font-size: 0;
    line-height: 0;
    position: absolute;
    top: 50%;
    display: block;
    width: 65px;
    height: 67px;
    padding: 0;
    -webkit-transform: translate(0, -50%);
    -ms-transform: translate(0, -50%);
    transform: translate(0, -50%);
    z-index: 2;
    color: transparent;
    border: none;
    outline: none;
    background: transparent;
}
.slick-prev {
    left: 0;
    background-image: url(../images/slider-prev.png);
    background-size: 100% auto;
}
.slick-next {
    right: 0;
    background-image: url(../images/slider-next.png);
    background-size: 100% auto;
}