.modal-overlay{    background: rgba(0,0,0,0.7);	position:fixed;	top:0;	left:0;	height:100%;	width:100%;}.modal-window{    left: 50%;    margin: 0;    padding: 0;    position: fixed;    top: 25%;    z-index: 10233;}.close-window{	position:absolute;	width:32px;	height:32px;	right:-30px;	top:-15px;	background:transparent url('../images/closebox.png') no-repeat scroll right top;	text-indent:-99999px;	overflow:hidden;	cursor:pointer;	opacity:.5;	filter: alpha(opacity=50);	-moz-opacity: 0.5;}.close-window:hover{	opacity:.99;	filter: alpha(opacity=99);	-moz-opacity: 0.99;}