body {
    margin: auto;
    max-width: 780px;
    color: #333;
    line-height: 1.2;
}
a { color: #37d; }
nav a { margin-right: 1em; }
h1, h2, strong, b { color: #222; }
footer {
    text-align: center;
    color: #666;
    font-size: 60%;
}