* {
	margin: 0;
	padding: 0;
}
body {
	line-height: 1.5em;
	font-family: Tahoma, Geneva, sans-serif;	
}
article {
	padding: 10px;
	margin-top: 10px;
	margin-right: auto;
	margin-left: auto;
	border: 1px solid #F30;
}
header h1 {
	font-size: 4em;
	color: #F30;
	margin-top: 10px;
	padding-top: 10px;
}
header {
	height: 96px;
}
nav {
	background-color: #F30;
	text-align: center;
	margin-bottom: 10px;
}
nav ul {
	list-style-type: none;
	margin: 0px;
	padding: 0px;
	display: flex;
}
nav ul li {
	text-align: center;
}
nav ul li a {
	font-weight: bold;
	color: white;
	display: block;
	text-decoration: none;
	padding: 5px;
}
nav ul li a:hover {
	background-color: #FF9F9F;
	color: #F30;
}
 @media screen and (max-width:719px) {
article {
	width: auto;
	margin-top: 0;
	border: 0;
	position:relative;
}
nav {
	position:absolute;
	bottom: -12em;
	width: 96%;
}
nav ul {
	width: 100%;
	display: block;
}
nav ul li {
	width: auto;
	border-top: 1px solid white;
	border-bottom: 1px solid white;
}
}
 @media screen and (min-width:720px) {
nav ul li {
	border-right: 1px solid white;
	border-left: 1px solid white;
	flex:1;
}
article {
	width: 720px;
}
article section {
	-webkit-column-count: 3;
	-moz-column-count: 3;
	-ms-column-count: 3;
}
}