.flip-card{perspective:1000px}
.flip-card-inner{position:relative;width:100%;height:300px;transition:transform .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-back{transform:rotateY(180deg);background:#f0f0f0;display:flex;align-items:center;justify-content:center}