.dg_caption *{
	text-align:center;
}
.dg_item{
	text-align:center;
}
.dg_image_cont{
	position:relative;
	display:inline-block;
}
.dg_overlay{
	position:absolute;
	top:0;
	bottom:0;
	left:0;
	right:0;
	height:100%;
	width:100%;
	opacity:0;
	transition:all 0.3s linear 0s;
	background:rgba(221, 221, 221, 0.6) url("../img/overlay_icon.png") no-repeat scroll center center;
}
.dg_image_cont:hover .dg_overlay{
	opacity:1;
}