.fuwafuwa {
animation: fuwafuwa 1.5s cubic-bezier(.45,.05,.55,.95) infinite;
}

@keyframes fuwafuwa {
  0%   { transform: translateY(0); }
  50%  { transform: translateY(-50px); }
  100% { transform: translateY(0); }
}

.step1 {
	animation: step01 3s ease-in-out infinite;
}
@keyframes step01 {
	0% {
		transform: rotate(0deg);
	}
	25% {
		transform: rotate(-20deg);
	}
	50% {
		transform: rotate(0deg);
	}
	75% {
		transform: rotate(-20deg);
	}
	100% {
		transform: rotate(0deg);
	}
}

.step2 {
	animation: step02 3s ease-in-out infinite;
}
@keyframes step02 {
	0% {
		transform: rotate(0deg);
	}
	25% {
		transform: rotate(20deg);
	}
	50% {
		transform: rotate(0deg);
	}
	75% {
		transform: rotate(20deg);
	}
	100% {
		transform: rotate(0deg);
	}
}