.shiftcontainer{
position: relative;
left: 7px; /*Number should match -left shadow depth below*/
top: 7px; /*Number should match -top shadow depth below*/
}

.shadowcontainer{
width: 350px; /* container width*/
background: transparent url(http://www.grazus.lt/zuikiai/konkurso_failai/images/bigshadow.gif) no-repeat bottom right;
}

.shadowcontainer .innerdiv{
/* Add container height here if desired */
background-color: white;
border: 1px solid gray;
padding: 6px;
position: relative;
left: -7px; /*shadow depth*/
top: -7px; /*shadow depth*/
height: 180px;
}