#block-system-main .node-article.ds-2col > .group-left { width: 80px; }
#block-system-main .node-article.ds-2col > .group-right { margin-left: 80px; width: auto; }
#block-system-main .node-article.ds-2col .post-submitted-info .submitted-date:before {
    content: "開催日";
    display: block;
    height: 1.5em;
    font-size: 90%;
}