.circle {
	position: relative;
}
.circle::before {
	content: "";
	display: inline-block;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translateX(-50%) translateY(-50%);
	width: 13px;
	height: 13px;
	border: 1px solid #000;
	border-radius: 50%;
}