body{
    width: 100%;
    font-family: "Times New Roman";
    margin: 0;
}

/* HEADER */
#header{
    height: 20px;
    background: #666;
    color: white;
    text-align: center;
    font-size: 35px;
    padding: 20px;
}

/* NAVIGATION */
#nav{
    width: 30%;
    height: 300px;
    background: #ccc;
    float: left;
    padding: 10px;
}

/* ARTICLE */
#article{
    width: 70%;
    height: 300px;
    background: #eee;
    float: left;
    padding: 10px;
}

/* FOOTER */
#footer{
    background: #666;
    color: white;
    text-align: center;
    padding: 10px;
    clear: both;
}