body{
	background-color: white;
	font-family: arial;
}
.container{
	background-color: yellow;
	width: 1400px;
	border: 1px black solid;
	overflow: hidden;
	margin: auto;
}
header{
	clear: both;
	text-align: center;
}
h1{
	font-size: 50px;
	margin: 15px;
}
.ruta{
	border:6px black solid;
	height: 120px;
	width: 120px;
	margin: 25px;
	float: left;
}
.bgred {
	background-color:red;
}
.bggreen {
	background-color:green;
}
.bgblue {
	background-color:blue;
}
footer{
	clear: both;
	background-color: grey;
	text-align: center;
	border-top: 1px black solid;
	padding: 20px;
}
.fot {
	font-size:2em;
	font-weight:bold;
}
h3{
	font-size: 3em;
	margin: 30px;
}
@media screen and (max-width: 1400px) {
	.container {
		width: 840px;
	}
	body {
		background-color:darkgrey;
	}
}
@media screen and (max-width: 840px){
	.container {
		width: 560px;
	}
	body {
		background-color:lightblue;
	}
}

@media screen and (max-width: 560px){
	.container {
		width: 140px;
	}
	body {
		background-color:orange;
	}
	.ruta{
		width: 120px;
		height: 120px;
		margin: 8px;
		border:3px black solid;
	}
	h1, .fot {
		font-size:1em;
	}
}