body {
	font-family: Arial, sans-serif;
	margin: 0;
	background: white;
	text-align: center;
	overflow-x: hidden; 
}


.container {
	width: 90%;              
	margin: 5% auto;
	background: #d9f1ff;
	padding: 5%;
}


nav {
	border-top: 2px solid black;
	border-bottom: 2px solid black;
	padding: 10px 0;
	margin-bottom: 30px;
	width: 100%;            
}

nav ul {
	list-style: none;
	padding: 0;
	margin: 0;
	text-align: center;    
}

nav li {
	display: inline-block;
	margin: 0 2%;
}

nav a {
	text-decoration: none;
	color: purple;
	padding: 10px;
}


.box {
	display: inline-block;
	width: 45%;             
	margin: 2%;
	vertical-align: top;
	text-align: left;
}

.left-box {
	background: white;
	border: 2px solid green;
	padding: 20px;
}

.right-box {
	background: magenta;
	border: 2px solid blue;
	padding: 20px;
}

.footer-text {
	text-align: left;
	margin-top: 20px;
}


@media (max-width: 800px) {

	.box {
		width: 100%;
		margin: 10px 0;
	}
}


@media (max-width: 500px) {

	.container {
		width: 100%;      
		padding: 20px;
	}

	nav li {
		display: block;
		margin: 10px 0;   
	}

	nav a {
		display: block;
		padding: 12px;
	}
}