@keyframes bounce { 
  20%, 53%, 80%, 0%, 100% { animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1); transform: translate3d(0px, 0px, 0px); }
  40%, 43% { animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06); transform: translate3d(0px, -30px, 0px); }
  70% { animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06); transform: translate3d(0px, -15px, 0px); }
  90% { transform: translate3d(0px, -4px, 0px); }
}
.bounce { animation-name: bounce; transform-origin: center bottom; }