body 
{font-family: Arial;
color:#333;
}

header, footer {
	text-align: center;
	padding:40px 0;
	background: #DADADA;
}

nav ul {
	margin:0;
	padding: 0;
	list-style-type: none;
	border-top: 2px solid#083073
}

nav ul li a {
	display: block;
	background: #EDBB03;
	padding: 20px 10px;
	text-align: center;
	text-decoration: none;
	text-transform: uppercase;
	color: #fff;
	font-weight: bold;
	border-bottom: 2px solid #083073;
}
main {
	display: block;
	background-color: #F2F2F2;
	padding:20px;
}

@media only screen and (min-width: 600px) {
	#container {
		padding:20px;
		display: flex;
		flex-wrap: wrap;
	}
	
	header, footer {
		flex:100%;
	}
	
	nav {flex:1;
		background-color: F#7E5A3;
	}
	
	main {flex:2;
	}
	}

@media only screen and (min-width: 1020px) {
	
	#container {
		width: 1020px;
		margin:auto
			}
	
	main {
		flex: 3;
		display:flex;
	}
	
	main article:first-of-type {
		margin-right: 20px;
	}
}