#spinner-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.5);
	z-index: 9999;
	display: none;
}

#spinner {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 80px;
	height: 80px;
	border: 8px solid #ffffff;
	border-radius: 50%;
	border-top-color: #3498db;
	animation: spin 1s infinite ease-in-out;
}

@keyframes spin {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}