/* Vergangene Artikel ausgrauen */
article .entry-date {
    position: relative;
}

article .entry-date.past-event:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.03);
    pointer-events: none;
    border-radius: 3px;
}

article.past-event {
    opacity: 0.7;
    background-color: #f9f9f9;
}