body {
    background-color: #eee;
    font-family: Helvetica, Arial, sans-serif;
}
a {
    text-decoration: none;
    color: red;
}
h1,h2,h3 {
    margin: 0;
}
#container {
    background-color: white;
    width: 800px;
    margin-left: auto;
    margin-right: auto;
}
#header {
    background-color: #66ccff;
    color: white;
    text-align: center;
    padding: 10px;
}
#content {
    padding: 10px;
}
#nav {
    width:180px;
    float: left;
}
#nav ul {
    list-style-type:none;
    padding: 0;   
}
#nav .selected{
    font-weight: bold;
}
#main {
    width: 600px;
    float: right;
}
#footer {
    clear: both;
    padding: 10px;
    background-color: #999999;
    color: white;
    text-align: right;
}