* {
	
}

body {
	background-color:#c0c0c0;
	margin: 0px;
	padding: 0px;
}
	
h1 {
	color:#800000;
}

header {
	width: calc(100% - 20px);
	height: 50px;
	background-color: #fff;
	border-bottom: 2px solid blue;
	padding: 10px;
	font-size: 1.2em;
	color: orange;
	font-family: fantasy;
	float: left;
}

article, aside {
	background-color: #fafafa;
	min-height: 400px;
	border-radius: 5px;
	border: 1px solid silver;
	box-sizing: border-box;
	margin-top: 20px;
	float: left;
	padding: 10px;
	overflow: auto;
}

article {
	width: 60%;
	margin-left: 5%;
	margin-right: 5%;
}

aside {
	width: 25%;
	position:;
	top:;
}

footer {
	width: calc(100% - 20px);
	height: 50px;
	margin-top: 20px;
	background-color: #fff;
	border-top: 2px solid blue;
	margin-bottom: 20px;
	padding: 10px;
	font-size: 1.2em;
	color: orange;
	font-family: fantasy;
	float: left;
}

span {
	display: block;
	visibility:;
	min-height: 10px;
	width: 150px;
	overflow: auto;
	border: 2px solid red;
	
}