css抖动动画

button{
	animation: beat 6s ease 0s infinite normal;
}
@keyframes beat {
	0% {
		transform: translateY(0px);
	}
	2% {
		transform: translateY(-7px);
	}
	6% {
		transform: translateY(7px);
	}
	8% {
		transform: translateY(0px);
	}
	10% {
		transform: translateY(-5px);
	}
	12% {
		transform: translateY(5px);
	}
	16% {
		transform: translateY(0px);
	}
	50% {
		transform: translateY(0px);
	}
	100% {
		transform: translateY(0px);
	}
}