html,
body {
  overflow-x: hidden;
}

body > img[src$="val_der3.jpg"] {
  display: block;
  width: 1920px;
  max-width: none;
  height: auto;
  margin-left: calc((100vw - 1920px) / 2);
}

#rt-logo {
  margin-left: auto !important;
  margin-right: auto !important;
  background-image: url("../images/val_der3.jpg") !important;
  background-position: center top !important;
  background-repeat: no-repeat !important;
}

@media (max-width: 1920px) {
  body > img[src$="val_der3.jpg"] {
    width: 100%;
    margin-left: 0;
  }
}