.loading {
	display: none;
	width: 30px;
	height: 30px;
	border: 3px solid #f3f3f3;
	border-top: 3px solid #3498db;
	border-radius: 50%;
	animation: spin 1s linear infinite;
}
@keyframes spin {
	0% { transform: rotate(0deg); }
	100% { transform: rotate(360deg); }
}
.add-domain {
	max-width: 700px;
	margin: 0 auto;
}