div.modal{
	position:absolute;
	z-index:99;
	display:none;
	width:300px;
	height:150px;
	padding:10px;
	display: table-cell;
	vertical-align: middle;
	text-align:center;
}

.img-glass-hour-center {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 46px;
	height: 58px;
	margin-top: -29px; /* Half the height !*/
	margin-left: -23px; /* Half the width !*/
}