/*** custom class on flipbox itself is here:  image-icons ***/

#top .image-icons .avia-icongrid-flipbox .av-icon-cell-item:nth-of-type(2) .avia-icongrid-front .icongrid-char {
  position: relative;
  display: block;
}

#top .image-icons .avia-icongrid-flipbox .av-icon-cell-item:nth-of-type(2) .avia-icongrid-front .icongrid-char:before {
  content: "";
  display:  block;
  position: absolute;
  top: -50px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height:50px;
  border-radius: 100%;
  padding: 5px;
  background-color: rgba(255,255,255,0.5);
  background-image: url(https://webers-testseite.de/wp-content/uploads/globe.gif);
  background-repeat: no-repeat;
  background-size: contain;
}