/* バウンスアニメーション */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -20px, 0);
  }
  70% {
    transform: translate3d(0, -10px, 0);
  }
  90% {
    transform: translate3d(0, -5px, 0);
  }
}

@keyframes fadeInOut {
  0%,100% {
    opacity: 1;
  }
  50% {
    opacity: 0.1;
  }
}