h1 {
    margin: 16px 0 24px 0;
    color: #222;
}
main details {
    margin: 8px 0;
}
main summary {
    font-size: 16px;
    font-weight: bold;
    color: #444;
    cursor: pointer;
    padding: 6px 0;
}
main details details {
    margin-left: 16px;
}
main details details summary {
    font-size: 14px;
    font-weight: normal;
    color: #666;
}
main ul {
    list-style: none;
    padding-left: 16px;
    margin: 4px 0 12px 0;
}
main li {
    margin: 4px 0;
    line-height: 1.6;
}
main li a {
    color: #3366cc;
}