* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.slider {
    height: 100vh;
    position: relative;
}

.slider img {
	object-fit: cover;
	max-height: 100%;
	max-width: 100%;
	position: absolute;
	top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
	opacity: 0;
	transition: opacity .5s;
	border: 5px solid #ffffff;
}

.slider img.active {
    opacity: 1;
}

.suivant, .precedent {
    color: #fff;
    font-size: 2rem;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
}

.suivant {
    right: 1rem;
}

.precedent {
    left: 1rem;
}