.carrousel {
    position: relative;
    width: 80rem;
    height: 45rem;
}

.carrousel img {
    width: 100%;
    height: 100%;
    display: none;
}

.carrousel img.active {
    display: block;
}

.arrow {
    position: absolute;
    top: 50%;
    width: 2.75rem;
    height: 2.75rem;
    border: none;
    border-radius: 999rem;
    background: white;
}

.arrow:hover {
    background: lightgray;
}

.arrow.left {
    left: 0.5rem;
}

.arrow.right {
    right: 0.5rem;
}