@keyframes background_change {
	0% {
		background-color: red;
	}
	10% {
		background-color: orange;
	}
	30% {
		background-color: yellow;
	}
	50% {
		background-color: green;
	}
	70% {
		background-color: blue;
	}
	90% {
		background-color: purple;
	}
	100% {
		background-color: red;
	}
}

#three {
	animation-name: background_change;
	animation-duration: 200ms;
	animation-iteration-count: infinite;
	animation-timing-function: linear;
	animation-fill-mode: forwards;
}