charset "utf-8";
.caja {
	width:80%;
	margin-left:auto;
	margin-right:auto;
}
.caja header {
	background-color: orange;
	text-align:center;
	margin-bottom:0.2em;
	color:black;
	font-size:24pt;
	font-weight:bold;
}
h1 {
	margin:0;
}
nav ul {
	list-style-type:none;
	margin:0;
	padding:0;
	margin-bottom:0.2em;
	display:flex;
	flex-direction: row;
}
nav li { flex-grow: 1; 
  font-family : Segoe UI;
	font-size : 20pt;
	font-weight: bold;
	color:navy;
	}
nav a {
	display:block;
	padding:1em;
	background-color:LightGray;
	text-align:center;
	margin-right:0.2em;
	text-decoration:none;
	color:#000000;
}
nav a:hover {
	background-color:navy; 
	color:white;
	font-size:22pt;
	font-weight:bold;
}
.contenido {
	margin-bottom:0.2em;
	display:flex;
	flex-direction: row;
}
article {
	background-color:orange;
	flex-basis: 30%;
	font-family:Segoe UI;
	font-size: 14pt;
	font-weight:bold;
}
aside {
	background-color:orange;
	flex-basis: 70%;
	margin-left:0.2em;
	font-family:Segoe UI;
	font-size: 14pt;
}
footer {
	background-color:SandyBrown;
	font-weight:bold;
}