.boingInUp {
  -webkit-animation-name: boingInUp;
  animation-name: boingInUp;
}

@-webkit-keyframes boingInUp {
  0% {
    opacity: 0;
    -webkit-transform-origin: 50% 0%;
    transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(-90deg);
    transform: perspective(800px) rotateX(-90deg);
  }
  50% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
    transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(50deg);
    transform: perspective(800px) rotateX(50deg);
  }
  100% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
    transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(0deg);
    transform: perspective(800px) rotateX(0deg);
  }
}

@keyframes boingInUp {
  0% {
    opacity: 0;
    -webkit-transform-origin: 50% 0%;
    transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(-90deg);
    transform: perspective(800px) rotateX(-90deg);
  }
  50% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
    transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(50deg);
    transform: perspective(800px) rotateX(50deg);
  }
  100% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
    transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(0deg);
    transform: perspective(800px) rotateX(0deg);
  }
}