@keyframes flipInY { 0% { transform: perspective(400px) rotateY(90deg); opacity: 0; } 40% { transform: perspective(400px) rotateY(-10deg); } 70% { transform: perspective(400px) rotateY(10deg); } 100% { transform: perspective(400px) rotateY(0deg); opacity: 1; } } .flipInY { backface-visibility: visible !important; animation-name: flipInY; }