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

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

.thumbnail:hover{
background-color: #ffffff;/*#D0E4F4; /*transparent;*/
}

.thumbnail:hover img{
border: 0px;	/*1px solid blue;*/
}

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: #D0E4F4;
padding: 5px;
left: -1000px;
border: solid #224B6E; /*1px #B10101; /*
visibility: hidden;
text-decoration: none;
}

.thumbnail span img{ /*CSS for enlarged image*/
border-width: 1px;
padding: 2px 4px 0 8px;
}

.thumbnail:hover span{ /*CSS for enlarged image*/
visibility: visible;
top: 0;
left: 250px; /*position where enlarged image should offset horizontally */
z-index: 50;
}