.overlay{
	display: none;
	position: fixed;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	z-index: 999;
	background: rgba(0, 0, 0, 0.7) url("https://raw.githubusercontent.com/picomax/profile/master/hooni.net/resume/image/loading_comment_100.svg") center no-repeat;
}
/* Turn off scrollbar when body element has the loading class */
body.loading{
	overflow: hidden;   
}
/* Make spinner image visible when body element has the loading class */
body.loading .overlay{
	display: block;
}