.dokuwiki .plugin_doi {
    display: inline-block;
    vertical-align: top;

    a.urlextern {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23888888' d='M19 2L14 6.5V17.5L19 13V2M6.5 5C4.55 5 2.45 5.4 1 6.5V21.16C1 21.41 1.25 21.66 1.5 21.66C1.6 21.66 1.65 21.59 1.75 21.59C3.1 20.94 5.05 20.5 6.5 20.5C8.45 20.5 10.55 20.9 12 22C13.35 21.15 15.8 20.5 17.5 20.5C19.15 20.5 20.85 20.81 22.25 21.56C22.35 21.61 22.4 21.59 22.5 21.59C22.75 21.59 23 21.34 23 21.09V6.5C22.4 6.05 21.75 5.75 21 5.5V19C19.9 18.65 18.7 18.5 17.5 18.5C15.8 18.5 13.35 19.15 12 20V6.5C10.55 5.4 8.45 5 6.5 5Z' /%3E%3C/svg%3E");
        // same style as in dokuwiki template:
        background-size: 1.2em;
        background-repeat: no-repeat;
        background-position: 0 center;
        padding: 0 0 0 1.4em;
    }

    .meta .isbn,
    .meta .doi {
        font-size: 0.8em;
    }
}