@keyframes flipInX{from{transform:perspective(400px) rotate3d(1, 0, 0, 90deg);animation-timing-function:ease-in;opacity:0;}40%{transform:perspective(400px) rotate3d(1, 0, 0, -20deg);animation-timing-function:ease-in;}60%{transform:perspective(400px) rotate3d(1, 0, 0, 10deg);opacity:1;}80%{transform:perspective(400px) rotate3d(1, 0, 0, -5deg);}100%{transform:perspective(400px);}}.flipInX{backface-visibility:visible !important;animation-name:flipInX}