body {
    margin:         0 auto;
    padding:        0 24px;
    max-width:      900px;
    font-family:    sans-serif;
    font-size:      16px;
}

h1 {
    margin:         24px 0;
    padding-bottom: 24px;
    border-bottom:  1px solid black;
    text-align:     center;
    font-size:      36px;
}

section:last-of-type {
    padding-bottom: 6px;
    border-bottom:  1px solid black;
    margin-bottom:  24px;
}

h2 {
    margin:         24px 0;
    border-top:     1px solid black;
    padding-top:    24px;
    text-align:     center;
    font-size:      24px;
}

ul {
    padding-left: 16px;
}