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;
}
}