body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
}

h1, h2, h3 {
    color: #333;
}

pre {
    background: #333;
    color: #fff;
    padding: 10px;
}

blockquote {
    border-left: 5px solid #ccc;
    padding-left: 15px;
    margin-left: 0;
}

a {
    color: #333;
}

#calendars ul, #references ul {
    list-style: none;
    padding: 0;
}

#calendars li, #references li {
    margin-bottom: 10px;
}