body {
    margin-top: 4em;
}

h1 {
    text-align: center;
}

ol {
    width: 20em;
    margin-top: 2em;
    margin-right: auto;
    margin-left: auto;
}

li img {
    margin-right: 0.5em;
    vertical-align: middle;
}

p.navi, h1 {
    font-family: "Verdana", "Arial", serif;
}

p.navi {
    position: absolute;
    top: 1em;
    left: 1em;
    margin: 0;
}

p.date {
    text-align: right;
    margin-right: 1em;
}