style.css

body {
	background-color: #EEE;
	font-family: Helvetica, Arial, sans-serif;
}

#container {
	background-color: #7B68EE;
	opacity: .70;
	width: 800px;
	margin-left: auto;
	margin-right: auto;
	box-shadow: 0px 0px 10px;

}

a {
	text-decoration: none;
	color: purple;
}

h1, h2, h3, h4, h5,p {
	margin: 4;
}

#nav ul {
	list-style-type: none;
	padding: 0;
}

#header {
	background-color: #66CCFF;
	color: black;
	text-align: center;
	padding: 10px;
}

#content {
	padding: 10px;
}

#nav {
	width: 130px;
	padding: 10px;
	float: left;
	background: #ff0066; 
	margin: 5px;
}

#nav .selected {
	font-weight: bold;
}

#main{
	/*background: linear-gradient(red , yellow);*/
	background: #ff0080;
	width: 600px;
	float: right;
	margin: 5px;
}

#footer {
	clear:both;
	padding: 10px;
	background-color: #999999;
	color: white;
	text-align: right;
}