.easteregg:after {
  content: '+43 664 1567301 Call For Good Time';
  opacity:0;
  transition: 2s all;   
  color: red;
  font-size: 150%;
  position: relative;
  top: -120px;
  left: 200px;
  }

.easteregg:hover:after {
  opacity:1;
  transition-delay: 20s; 
}