/* Animation classes */
.shake {
  animation: shake 400ms both;
}

/* Keyframes */
@keyframes bubble-up {
  0% { transform: translate(0, 0); }
  25% { transform: translate(0.5em, -2em); }
  50% { transform: translate(0, -4em); opacity: 0.66; }
  75% { transform: translate(0.5em, -6em); opacity: 0.33; }
  100% { transform: translate(0, -8em); opacity: 0; }
}

@keyframes float-up-left {
  0% { transform: translate(10px, 20px); }
  100% { transform: translate(0, 0); }
}

@keyframes float-down-right {
  0% { transform: translate(-10px, -20px); }
  100% { transform: translate(0, 0); }
}

@keyframes shake {
  0%  { transform: translateX(-2rem); }
  25% { transform: translateX(2rem); }
  50% { transform: translateX(-1rem); }
  75% { transform: translateX(1rem); }
}

@keyframes shimmy {
  0%  { transform: translateX(-0.5rem); }
  25% { transform: translateX(0.5rem); }
  50% { transform: translateX(-0.2rem); }
  75% { transform: translateX(0.2rem); }
}

@keyframes appear-then-fade {
  0%,100% { opacity: 0; }
  5%,60%  { opacity: 1; }
}