body{
	margin: 0;
	height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: black;
	overflow: hidden;
}
.container{
	font-size: 10px;
	width: 40em;
	height: 40em;
	position: relative;
}
.sun{
	position: absolute;
	top: 15em;
	left: 15em;
	width: 10em;
	height: 10em;
	background-color: yellow;
	border-radius: 50%;
	box-shadow: 0 0 3em white;
}
.earth, .moon{
	position: absolute;
	border-radius: 50%;
	border-style: solid;
	border-color: white
	transparent
	transparent
	transparent;
	border-width: 0.1em 0.1em 0 0;
}
.earth{
	top: 5em;
	left: 5em;
	width: 30em;
	height: 30em;
	animation: orbit 36.5s linear infinite;
}
.moon{
	top: 0;
	right: 0;
	width: 8em;
	height: 8em;
	animation: jiyan .8s linear infinite;
}
.earth::before,
.moon::before{
	content: "";
	position: absolute;
	border-radius: 50%;
}
.earth::before{
	top: 2.8em;
	right: 2.8em;
	width: 3em;
	height: 3em;
	background-color: aqua;
}
.moon::before{
	top: 0.8em;
	right: 0.2em;
	width: 1.2em;
	height: 1.2em;
	background-color: silver;
}
@keyframes orbit {
	to {
		transform: rotate(360deg);
	}
}
@keyframes jiyan {
	to {
		transform: rotate(360deg);
	}
}