body{
	height: 100%;
	width: 100%;
	margin: 0%;
	padding: 0%;
}

.caja header{
	margin: 5px;
	height: 60px;
	border-style: solid;
	display: block;
	


}
.caja nav{
	height: 30em;
	width: 25%;
	border-style: solid;
	float: left;
	margin: 5px;



}
.caja section{
	height: 30em;
	width: 47%;
	border-style: solid;
	float: left;
	margin-top: 5px;
	margin-right: 2px;
	margin-left: 11px;
	margin-bottom: 5px;
	padding: 2px;


}

.caja section header{
	padding: 10px;
	height: 60px;
	margin-top: 80px;
	margin-bottom: 5px;
}

.caja section article{
	border-style: solid;
	padding: 10px;
	height: 180px;
	margin-top: 10px;
	margin-bottom: 8px;
	margin-right: 5px;
	margin-left: 5px;

}

.caja section footer{
	padding: 2px;
	height: 50px;
	position: bottom;
}

.caja aside{
	height: 30em;
	width: 20em;
	border-style: solid;
	float: left;
	margin-top: 5px;
	margin-bottom: 5px;
	margin-right: 7px;
	margin-left: 5px;

}
.caja footer{
	height: 40px;
	border-style: solid;
	margin: 5px;
	display: block;
	clear: both;
}