.body1 {
	font-family: Georgia, "Times New Roman", Times, serif;
	font-size: small;
	color: #333333;
	background-color: #FFFFFF;
	margin: 10px;
	padding: 7px;
	border: 1px solid #333333;
	cursor:pointer;
}
<style type="text/css">

/*Credits: Dynamic Drive CSS Library */
/*URL: http://www.dynamicdrive.com/style/ */

.gallerycontainer{
position: 400px;
/*Add a height attribute and set to largest image's height to prevent overlaying*/
}

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

.thumbnail:hover{
background-color: transparent;
}

.thumbnail:hover img{
border: 1px solid black;
}

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: white;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color: black;
text-decoration: none;
}

.thumbnail span img{ /*CSS for enlarged image*/
border-width: 0;
padding: 2px;
}

.thumbnail:hover span{ /*CSS for enlarged image*/
visibility: visible;
top: 262px;
left: 55%; /*position where enlarged image should offset horizontally */
z-index: 50;
}

</style>