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) {
	/***** Layout rules go in here *****/
	
	#container {
		padding: 20px;
		display: flex;
		flex-wrap: wrap;
	}
	
	header, footer {
		flex: 100%;
	}
	
	nav {
		flex: 1;
		background-color: #F7E5A3;
	}
	
	main {
		flex: 2;
	}
}


@media only screen and (min-width:1020px) {
	/***** Maximum sized layout rules go in here *****/
	
	#container {
		width: 1020px;
		margin: auto;
	}
	
	main {
		/* changes the proportion of nav to main*/
		flex: 3;
		
		/* turns main into a flexbox */
		display: flex;
	}
	
	main article:first-of-type {
		margin-right: 20px;
	}
}