#fondo{
	position: absolute;
 }
 
 .elemento{
	position: absolute;
 }
 
 .accion{
	width: 100px;
	height: 30px;
	text-align: center;
	vertical-align: center;
	background: #EEE;
	padding-top: 10px;
	display: none;
	position: absolute;
	top: 0px;
	left: 0px;
 }