.gallerycontainer{
position: relative;
height: 500px;
}

.thumbnail img{
border: 1px solid white;
margin: 0 5px 5px 0;
}

.thumbnail:hover{
background-color: transparent;
text-decoration:none;
}

.thumbnail span{ /*CSS for enlarged image*/
	position: absolute;
	background-color: lightyellow;
	padding: 2px;
	left: -1000px;
	border: 1px dashed gray;
	visibility: hidden;
	color: black;
	text-decoration:none;	
	font-size:12px;
	text-align:center;
	font-style:normal;
}

.thumbnail span img{ 
border-width:0;
padding: 1px;
}

.thumbnail:hover span{ /*CSS for enlarged image*/
visibility: visible;
top: 80px;
left: 230px; /*position where enlarged image should offset horizontally */
z-index: 50;
}