.swiper-button-prev{opacity: 0.3;background: url(/images/ico.png) no-repeat;}
.swiper-button-next{opacity: 0.3;background: url(/images/ico.png) no-repeat;background-position-y: -41px;}
.swiper-button-prev:hover{opacity: 1;}
.swiper-button-next:hover{opacity: 1;}