#product_xx { 
background: transparent; 
position: relative;
top: 0px;
left: 0px;
width: 255px;
height: 166px;
margin: 0;
}

.product {
position: relative;
z-index: 2;
}

#product01 { 
display: block;
margin-top: 5px;
}

#product02, #product03, #product04, #product05, #product06 { 
display: none;
margin-top: 5px;
}