.flip-card {
    background-color: transparent;
    width: 100%;
    height: 200px;
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 1s;
    transform-style: preserve-3d;
}

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

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

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

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