Guard against the request object not having a user attribute in my Who's online middleware. This can happen if a redirect is issued before the authentication middleware gets to run.

div.potd-details {
    text-align: center;
}
div.potd-details p.caption {
    font-weight: bold;
}
div.potd-details p.details {
    font-style: italic;
    font-size: smaller;
}