.shiftcontainer{
position: relative;
left: 5px; /*Number should match -left shadow depth below*/
top: 5px; /*Number should match -top shadow depth below*/
}

.shadowcontainer{
width: 100%; /* container width*/
background-color: #aaaaaa;
}

.shadowcontainer .innerdiv{
/* Add container height here if desired */
background-color: white;
border: 1px solid black;
padding: 0px;
position: relative;
left: -5px; /*shadow depth*/
top: -5px; /*shadow depth*/
}