@keyframes shake {
  0%, 100% {
        transform: translate3d(4px,-1px,0);
  }
  10%, 90% {
    transform: translate3d(-4px, 0px, 0);
  }
  
  20%, 80% {
    transform: translate3d(4px, 1px, 0);
  }

  30%, 50%, 70% {
    transform: translate3d(-4px, 0px, 0);
  }

  40%, 60% {
    transform: translate3d(4px, -1px, 0);
  }
}

.shaking {
    animation: shake 1s infinite;
}

.reallyshaking {
    animation: shake 0.2s infinite;
}