BounceBall.css

@keyframes pace-bounce {
  0% {
    top: 0;
    animation-timing-function: ease-in;
  }
  50% {
    top: 140px;
    height: 140px;
    animation-timing-function: ease-out;
  }
  55% {
    top: 160px;
    height: 120px;
    border-radius: 70px / 60px;
    animation-timing-function: ease-in;
  }
  65% {
    top: 120px;
    height: 140px;
    border-radius: 70px;
    animation-timing-function: ease-out;
  }
  95% {
    top: 0;
    animation-timing-function: ease-in;
  }
  100% {
    top: 0;
    animation-timing-function: ease-in;
  }
}


@keyframes pace-compress {
  0% {
    bottom: 0;
    margin-left: -30px;
    width: 60px;
    height: 75px;
    background: rgba(20, 20, 20, .1);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1);
    border-radius: 30px / 40px;
    animation-timing-function: ease-in;
  }
  100% {
    bottom: 30px;
    margin-left: -10px;
    width: 20px;
    height: 5px;
    background: rgba(20, 20, 20, .3);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .3);
    border-radius: 20px / 20px;
    animation-timing-function: ease-out;
  }
}