* {box-sizing: border-box;}
 
 body {font-family: sans-serif;
	margin: 0;
	padding: 0;}
 
 header {height: 200px;
		margin-bottom: 10px;
		text-align: center;
		padding-top: 10px;
		background-image: url(stars.jpg);
		color: white;
		font-size: 28px;
		margin: 0px 0px;}
		
nav {float: left;
	height: 300px;
	padding: 20px;
	background-color: #008B8B;
	width: 320px;
	color: white;
	margin-right: 20px;}
	
nav ul {
  list-style-type: none; 
  padding-left: 0;}
  
a {
  text-decoration: none;}

  
nav a:link {color: #FFFFFF;}

nav a:visited {color: #FFFFFF;}

nav a:hover {color: #0000FF;}


.col-container {display: table;
				width: 100%;}
				
.col {display: table-cell;
	background-color: #ADD8E6;
	margin: 0px;}
	
footer {width: 100%;        
		margin: 0;
		padding: 10px 0;   
		background-color: #0000FF;
		color: white;
		text-align: center;
		box-sizing: border-box;}