.shadowcontainer{
width: 760px; /*container width*/
background: transparent url(../global_images/bigshadow.gif) no-repeat bottom right;
}

.shadowcontainer .innerdiv{
border: #ccc solid 1px;
padding: 6px;
position: relative;
left: -5px; /*shadow depth*/
top: -5px; /*shadow depth*/
}