#thumbwrap {
    position:Left;
    margin:5px auto;
    width:252px; height:80px;
}
.thumb img {
    border:1px solid #000;
    margin:3px;
    float:left;
}
.thumb span {
    position:absolute;
    visibility:hidden;
}
.thumb:hover, .thumb:hover span {
    visibility:visible;
    top:0; left:75px;
    z-index:1;
}