#flying_ad {width: 160px; height:600px; top: 15%; right: 0; position: fixed; z-index: 6000;}
@media all and (max-width: 1200px), (max-height: 600px) {
  #flying_ad {
    display: none;
  }
}
@media all and (max-height: 800px){
  #flying_ad {
    top:0;
  }
}