.slick-slider .slick-arrow{
    width: 46px;
    height: 46px;
    background: url('jtt-slider-arrow.png') 0 0 no-repeat;
    display: block;
    z-index: 888;
    opacity: 0;
    transition: all .2s ease-in-out
}
.slick-slider .slick-arrow:hover {
    background: url('jtt-slider-arrow-color.png') 0 0 no-repeat;
}
.img-slider:hover .slick-arrow:not([disabled]) {
    opacity: 1;
}