cite-source {
  font-size: small;
  display: block; }
  cite-source::before {
    content: "Quelle:"; }

.container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
      -ms-flex-direction: row;
          flex-direction: row;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap; }
  .container .col {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1; }

.warn {
  color: yellow; }

.reveal.reveal img {
  border: none;
  box-shadow: none;
  max-height: calc(36vh);
  max-width: calc(66vw); }

.highlight-1 {
  color: violet; }