body{
    max-width:900px;
    margin:40px auto;
    padding:0 20px;
    font:18px/1.7 Arial,sans-serif;
    color:#222;
    background:#fff;
}

header{
    margin-bottom:40px;
}

header h1{
    margin:0;
    font-size:2.5rem;
}

header p{
    margin:5px 0 0;
    color:#666;
}

nav{
    margin-bottom:40px;
}

nav a{
    margin-right:20px;
    color:#0066cc;
    text-decoration:none;
}

nav a:hover{
    text-decoration:underline;
}

h2{
    margin-top:0;
}

footer{
    margin-top:60px;
    padding-top:20px;
    border-top:1px solid #ddd;
    color:#777;
    font-size:.9rem;
}