head,
body {
	background: black;
	-webkit-animation: fadein ease 2s; /* Safari, Chrome and Opera > 12.1 */
	-moz-animation: fadein 2s; /* Firefox < 16 */
	-ms-animation: fadein 2s; /* Internet Explorer */
	-o-animation: fadein 2s; /* Opera < 12.1 */
	animation: fadein 2s;
}

@keyframes fadein {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

/* Firefox < 16 */
@-moz-keyframes fadein {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

/* Safari, Chrome and Opera > 12.1 */
@-webkit-keyframes fadein {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

/* Internet Explorer */
@-ms-keyframes fadein {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

/* Opera < 12.1 */
@-o-keyframes fadein {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}