.cadre-diapo {
    /*margin: 275px auto 0 auto;*/
    max-width: 850px;
    min-height: 400px;
    max-height: 600px;
    position: relative;
    width: 100%;
    height: auto;

    margin: 30px;
}

.cadre-diapo img {
    border-radius: 7px;
    box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
}


.diapo {
    opacity: 0;
    position: absolute;
    left: 50%;
    transform: translate3d(-50%, -50%, 0);
    top: 50%;
    transition: opacity 2s;
    width: 100%;
    /*max-width: 600px;*/
}


button {
    border: none;
    cursor: pointer
}

.precedent,
.suivant {
    color: silver;
    transition: color .4s linear;
    transform: translatey(-50%);
    top: 50%;
    padding: .5rem;
    font-size: 2rem;
    background: white;
    position: absolute
}

.precedent {
    left: 0
}

.suivant {
    right: 0
}

.precedent:hover,
.suivant:hover {
    color: black;
    transform: translatey(-50%) !important;
}

.numeros {
    transition: background .4s linear;
    color: white;
    background: #7A5FFF

}

.cadre-demo {

    display: flex;
    justify-content: center;

}