.card .overlay {
    border-radius: 0.25rem;
    -ms-flex-align: center;
    align-items: center;
    background-color: rgba(255,255,255,.7);
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center;
    justify-content: center;
    z-index: 9999;
}

.card>.loading-img, .card>.overlay {
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
}

.card .overlay>.fa, .card .overlay>.fab, .card .overlay>.fad, .card .overlay>.fal, .card .overlay>.far, .card .overlay>.fas {
    color: #343a40;
}

.card .overlay.dark {
    background-color: rgba(0,0,0,.5);
}

.card .overlay.dark>.fa, .card .overlay.dark>.fab, .card .overlay.dark>.fad, .card .overlay.dark>.fal, .card .overlay.dark>.far, .card .overlay.dark>.fas {
    color: #ced4da;
}