.flip-card {
    height: auto;
    width: 100%;
/*    max-height: 20rem;*/
    min-height: 20rem;
    perspective: 1000px;
}

    .flip-card .flip-card-front {
        -webkit-transform: rotateY(0deg);
        transform: rotateY(0deg);
    }

    .flip-card:hover .flip-card-front {
        -webkit-transform: rotateY(-180deg);
        transform: rotateY(-180deg);
    }

    .flip-card .flip-card-back {
        -webkit-transform: rotateY(180deg);
        transform: rotateY(180deg);
    }

    .flip-card:hover .flip-card-back {
        -webkit-transform: rotateY(0deg);
        transform: rotateY(0deg);
    }

.flip-card-front,
.flip-card-back {
    -webkit-backface-visibility: hidden;
    aspect-ratio: var(--flip-card-aspect-ratio);
    backface-visibility: hidden;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    background-blend-mode: overlay;
    border-color: var(--flip-card-border-color);
    border-radius: var(--flip-card-border-radius);
    border-style: solid;
    border-width: var(--flip-card-border-width);
    height: auto;
    min-height: 20rem;
    transition: transform 0.8s;
    transform-style: preserve-3d;
    width: 100%;
}

@media (max-width: 768px) {
    .flip-card-front, .flip-card-back {
        min-height: 15rem;
    }

    .flip-card-content .card-title {
        font-size: 1.5rem;
    }
}

.flip-card-front .flip-card-content,
.flip-card-back .flip-card-content {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
}

.flip-card-content {
    backface-visibility: inherit;
}

.flip-card-content .card-title {
    font-size: 2rem;
}

.flip-card-content p {
    font-size: 1.25rem;
}

.flip-card-content a {
    font-size: .85rem;
}

.flip-card-content a:not(.btn),
.flip-card-content a.btn-link {
    color: inherit;
}

.flip-card-content a:hover {
    text-decoration: none;
    filter: brightness(90%);
}

.flip-card .flip-card-back {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
}

.hyperlinkList:empty:before {
    content: '...';
    display: inline-block;
    color: #808080;
    text-align: center;
}

.hyperlinkList .list-group-item {

}

.hyperlinkList .list-group-item:nth-of-type(even) {
    background-color: rgba(0, 0, 0, 0.05);
}