.conteneur-jcarousel .jcarousel-prev {
    background: url("../img/fleche-gauche-jcarousel.png") no-repeat 0 0;
    cursor: pointer;
    height: 138px;
    left: -20px;
    position: absolute;
    text-indent: -999999px;
    bottom: 0;
    width: 30px;
}

.conteneur-jcarousel .jcarousel-next {
    background: url("../img/fleche-droite-jcarousel.png") no-repeat 0 0;
    cursor: pointer;
    height: 138px;
    position: absolute;
    right: -20px;
    text-indent: -999999px;
    bottom: 0;
    width: 30px;
}