.photogallery {
position:absolute;
width: 80%;
min-height: 80%;
left: 10%;
top: 2%;
overflow-y: none;
vertical-align: center;
}

img.photothumb {
border-style: solid;
border-width: 1px;
color: #cccccc;
}

img.photothumb:hover {
border-style: dotted;
border-width: 1px;
color: orange;
}