.container-flip{width:100%;height:510px;position:relative;-webkit-perspective:800px;-moz-perspective:800px;-o-perspective:800px;perspective:800px;margin-bottom:55px}.card{width:100%;height:100%;position:absolute;-webkit-transition:-webkit-transform 1s;-moz-transition:-moz-transform 1s;-o-transition:-o-transform 1s;transition:transform 1s;-webkit-transform-style:preserve-3d;-moz-transform-style:preserve-3d;-o-transform-style:preserve-3d;transform-style:preserve-3d;-webkit-transform-origin:50% 50%}.card .front,.card .back{display:block;height:100%;width:100%;text-align:center;font-weight:bold;position:absolute;-webkit-backface-visibility:hidden;-moz-backface-visibility:hidden;-o-backface-visibility:hidden;backface-visibility:hidden}.card .back{-webkit-transform:rotateY(180deg);-moz-transform:rotateY(180deg);-o-transform:rotateY(180deg);transform:rotateY(180deg)}.card.flipped{-webkit-transform:rotateY(180deg);-moz-transform:rotateY(180deg);-o-transform:rotateY(180deg);transform:rotateY(180deg)}