div.photo{
    position:relative;
    width:227px;
    height:283px;
}
div.photow{
    position:relative;
    width:520
px;
    height:283px;
}
div.photow2{
    position:relative;
    width:612px;
    height:283px;
}
span.guard{
    position:absolute;
    display:block;
    width:100%;
    height:100%;
    background-image:url(http://www.mcs2u.com/img/spacer.gif);
}