#diashow {
    height: 675px;
    width: 1200px;
    position: relative;
    margin: 2em auto 0;
    border: 5px solid #eee;
    box-shadow: 1px 1px 5px 2px #777;
}

#diashow img {
    display: none;
    height: 675px;
    width: 1200px;
    position: absolute;
}

#diashow #eins {
    display: block;
}