.overlay {
	position: fixed;
	z-index: 999;
	height: 100%;
	width: 100%;
	overflow: show;
	margin: auto;
	top: 0;
	left: 0;
	bottom: 0;
	right: 0;
	background-color:rgba(41,41,61,0.75);
}

.loader {
	position: absolute;
	top: calc(50% - 50px);
	top: -webkit-calc(50% - 100px);
	left: calc(50% - 200px);
	left: -webkit-calc(50% - 200px);
	width: 120px;
	height: 120px;
	border-radius: 50%;	
	border: 16px solid #f3f3f3;
	border-top: 16px solid #000;
	-webkit-animation: spin 2s linear infinite; /* Safari */
	animation: spin 2s linear infinite;
}

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

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