body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    z-index: -1;
    background: #000000 url("../images/gallerie.jpg");
    opacity: .35;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

.under-construction {
    font-family: 'Indie_Flower';
    font-size: 26px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vH;
    width: 100%;
}