#thumbwrap {
	position:relative;
	margin:75px auto;
	width:252px; height:252px;
}
.thumb img { 
	border:1px solid #000;
	margin:3px;
	float:left;
}
.thumb span { 
	position:absolute;
	visibility:hidden;
}
.thumb:hover, .thumb:hover span { 
	visibility:visible;
	top:0; left:250px; 
	z-index:1;
}