 none;
    position: absolute;
    top: -8px;
    right: 12px;
    padding: 3px;
    color: #555;
    background-color: #f2f2f299;
  }
  pre.src:hover:before { display: inline; margin-top: 14px;}
  /* Languages per Org manual */
  pre.src-asymptote:before { content: 'Asymptote'; }
  pre.src-awk:before { content: 'Awk'; }
  pre.src-authinfo::before { content: 'Authinfo'; }
  pre.src-C:before { content: 'C'; }
  /* pre.src-C++ doesn't work in CSS */
  pre.src-clojure:before { content: 'Clojure'; }
  pre.src-c