.flip-card {
    perspective: 1000px;
    /*width: 300px;*/
    height: 400px;
}

.flip-card-inner {
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

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

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.flip-card-front {
    z-index: 2;
}

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