.thumbnail{
position: relative;
z-index: 0;
}

.thumbnail:hover{
background-color: transparent;
z-index: 5000;
}

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
left: -1000px;
visibility: hidden;
color: black;
text-decoration: none;
margin-top:2px;
}

.thumbnail span img{ /*CSS for enlarged image*/
border-width: 0;
}
.min{ /*CSS for enlarged image*/
	border-width: 0;
	padding: 2px;
	-moz-border-radius: 5px 5px 5px 5px; 
	-webkit-border-radius: 5px 5px 5px 5px; 
	border-radius: 5px 5px 5px 5px;         
	-webkit-border-top-left-radius: 5px; /* pour Chrome */ 
	-webkit-border-top-right-radius: 5px; /* pour Chrome */ 

}

.thumbnail:hover span{ /*CSS for enlarged image on hover*/
visibility: visible;
top: 0;
left: 2px; /*position where enlarged image should offset horizontally */
}