.related-articles {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-gap: 2em;
  list-style: none;
  padding: 0;
  margin: 0;
}
.related-articles h4 {
  font-size: 1.2em;
}
.bannergroup {
  display: grid;
  grid-template-columns: 1fr;
  grid-gap: 1em;
}
.com-content-article__body .bannergroup {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-gap: 1em;
  padding-bottom: 30px;
  padding-top: 30px;
}
.com-content-article__body .bannergroup:before {
  content: "Werbung:";
  font-style: italic; 
  grid-column: span 3;
  
}