.s1-l .slick-prev {
    left: 10px;
    background: rgba(255, 255, 255, 0.7) url(images/prev2.png) no-repeat center;}


.s1-l .slick-next {
right: 10px;
    background: rgba(255, 255, 255, 0.7) url(images/next2.png) no-repeat center;}