.sphere {
	position: relative;
	transform-style: preserve-3d;
}

.meridian {
	transform-style: preserve-3d;

}

.polygon {
	position: absolute;
	margin: auto;
	background-repeat: no-repeat;
	backface-visibility: hidden;

}

@keyframes rotate {
	from {
		transform: rotate3d(1, 1, 0, 0deg);
	}
	to {
		transform: rotate3d(1, 1, 0, 360deg);
	}

}