/* CSS Document */
*{
margin:0;
padding:0;
}

.modal{
	width:100%; 
	height:100%; 
	background: rgba(0,0,0,.3);
	position:fixed;
	top:0;
	left:0;
	display:none;
}

.ventana{
	width:auto;
	height:auto;
	text-align:center;
	position:absolute;
	top:10%;
	left:-90px;
	margin-left:10%;
	margin-right:10%;
	}
	
.boton-abrir{
	margin:15px;
	padding:15px;
	font-size:1.5em;
}

.boton-cerrar{
  width:20px;
  padding:2px;
  background:#f00;
  color:#fff;
  float:left;
  font-weight:bold;
  font-family:Arial;
  cursor:pointer;
}