.gallerycontainer{ position: relative; margin-top: 30px; margin-left: 1px;
/*Add a height attribute and set to largest image's height to prevent overlaying*/
}

.thumbnail img{
border: solid 1px #2a2c2f;
margin: 0 5px 5px 0;
}

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

.thumbnail:hover img{
border: solid 1px #fd7400;
}

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: #fd7400;
padding: 5px;
left: -1000px;
border: dashed 1px 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: 400px; /*position where enlarged image should offset horizontally */
z-index: 50;
}