.cloud {
	position: relative;
	top: 0px;
	right: 0px;
	opacity: .8;
	right: -500px;
	animation: cloud 12s linear 0s infinite reverse;
	z-index: 99;
}
@keyframes light {
	0% {opacity: 0;}
	100% {opacity: 1;}
}
@keyframes cloud {
	from {right:-1800px;}
	to {right: 100%;}
}