.prev-arrow {
    transform: rotate(90deg);
    left: -8%;
}

.next-arrow {
    right: -8%;
    transform: rotate(270deg);
}

.prev-arrow, .next-arrow {
    position: absolute;
    z-index: 99;
    top: 50%;
    width: 50px;
    height: 50px;
    background-image: url(../img/arrow.png);
    background-repeat: no-repeat;
    background-position: center;
}

.les-biens-slider .slick-slide {
    margin: 0 10px;
}

@media (max-width: 992px) {
    .les-biens-slider .slick-slide {
        margin: 0px;
    }

    .les-biens-slider .el__bien {
        margin: 0px;
    }
}