CSS: Box Shadow Right Lifted Corner

gistfile1

Effect 4 will lift the corner on the bottom right of the box.

The HTML

<div class="box effect4">
<h3>Effect 4</h3>
</div>
The CSS

.box h3{
	text-align:center;
	position:relative;
	top:80px;
}
.box {
	width:70%;
	height:200px;
	background:#FFF;
	margin:40px auto;
}
/*==================================================
 * Effect 4
 * ===============================================*/
.effect4
{
  position: relative;
}
.effect4:after
{
  z-index: -1;
  position: absolute;
  content: "";
  bottom: 15px;
  right: 10px;
  left: auto;
  width: 50%;
  top: 80%;
  max-width:300px;
  background: #777;
  -webkit-box-shadow: 0 15px 10px #777;
  -moz-box-shadow: 0 15px 10px #777;
  box-shadow: 0 15px 10px #777;
  -webkit-transform: rotate(3deg);
  -moz-transform: rotate(3deg);
  -o-transform: rotate(3deg);
  -ms-transform: rotate(3deg);
  transform: rotate(3deg);
}