#container {
	position: fixed;
	top: 10px;
	left: 10px;
	right: 10px;
	bottom: 10px;
	
	background-color: rgba(0, 0, 0, 0.3);
	
	border-radius: 20px;
	
}


#black {
	display: none;
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	
	background-color: black;
	color: rgba(255, 255, 255, 0.3);
}

#black .center-xy {
	width: 100%;
	text-align: center;
}

#black svg {
	display: block;
	margin: 0 auto;
	height: 40px;
	width: 40px;
	rotate: -40deg;
}