ul {
    list-style: disc inside;
}

div.image {
    border: 1px solid #999;

    margin-bottom: 0.5em;
}

div.image span.caption {
    display: block;
}

div.image.left {
    float: left;

    margin-right: 1em;
}

div.image.right {
    float: right;

    margin-left: 1em;
}

div.image.center {
    text-align: center;
}

div.image.center span.caption {
    margin-left: auto;
    margin-right: auto;

    text-align: left;
}