.flip-card{background-color:transparent;width:300px;height:300px;perspective:1000px}.flip-card-inner{position:relative;width:100%;height:100%;text-align:center;transition:transform .6s;transform-style:preserve-3d}.flip-card:hover.flip-card-inner{transform:rotateY(180deg)}.flip-card-back,.flip-card-front{position:absolute;width:100%;height:100%;backface-visibility:hidden}.flip-card-front{color:#000}.flip-card-back{background-color:#4b5563;color:#fff;transform:rotateY(180deg)}