* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
	font-family: sans-serif;
}
.items {
	position: relative;
	perspective: 500px;
}
.item {
	border: 1px solid red;
	width: 50px;
	height: 50px;
	position: absolute;
	top: 50%;
	left: 50%;
	margin-top: -25px;
	margin-left: -25px;
	border-radius: 50%;
}
.item .text {
	display: block;
	position: absolute;
	background: red;
	width: 20px;
	height: 20px;
	line-height: 20px;
	color: #fff;
	font-size: 10px;
	border-radius: 50%;
	top: 50%;
	left: 50%;
	transform: translateX(-50%) translateY(-50%);
	z-index: 2;
	text-align: center;
}
.item:after {
	content: " ";
	display: block;
	position: absolute;
	width: 50%;
	top: 50%;
	left: 50%;
	height: 1px;
	background: red;
}
.pointer {
	position: fixed;
	width: 2px;
	height: 2px;
	background: black;
	opacity: 0;
}
.itemcenter {
	position: fixed;
	width: 5px;
	height: 5px;
	background: green;
	z-index: 5;
}