<style type="text/css">

.gallerycontainer{
position: relative;
}   /*Add a height attribute and set to largest image's height to prevent overlaying*/
    /*<!-- I set the (height:auto;)-->*/
.thumbnail img{
border: 0px solid white;
margin: 0 5px 5px 0;
}

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

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

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: lightyellow;
padding: 5px;
left: -1000px;
border: 0px 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: 0;
left: 638px; /*position where enlarged image should offset horizontally */
z-index: 50;
}
.collapsible form { margin-bottom: 0; } /* I added this to try to remove space at bottom */

</style>

