@keyframes gradient {
	0% {
		background-position: 0% 50%;
	}
	50% {
		background-position: 100% 50%;
	}
	100% {
		background-position: 0% 50%;
	}
}

.an-rotate{
	animation: a-rotate 15 linear infinite;
}
@keyframes a-rotate{
	25% {
		transform: rotate(45deg);
		background-color: black;
	}
	50% {
		transform: rotate(90deg);
		background-color: white;
	}
	75% {
		transform: rotate(135deg);
		background-color: red;
	}
	100% {
		transform: rotate(180deg);
	}
}