.slick-main-carousel {
    background: #0000;
    margin: 0 25px;
    /* space for prev/next buttons */
}

.slick-carousel-cell {
    width: 100%;
    max-height: 400px;
    margin-right: 10px;
    background: #ffff;
    border-radius: 5px;
}

.slick-carousel-cell img {
    height: auto;
    max-width: 100%;
}