/**
 * Style
 */
body {
    margin: 8px auto;
    color: #333;
    max-width: 600px;
    overflow-y: scroll;
}

h1 {
    border-bottom: 1px solid #666;
}

h2 {
    border-bottom: 1px solid #ccc;
}

pre {
    white-space: pre-wrap;
}