.banner--clone.banner--unstick,
.banner--clone {
  visibility: hidden;
}
.banner--clone.banner--stick {
  visibility: visible;
}
.banner--clone {
  position:fixed;
  top:0;
  left:0;
  z-index: 100;
  -webkit-transform:translateY(-100%);
  -ms-transform:translateY(-100%);
  transform:translateY(-100%);
  -webkit-transition:all 300ms ease;
  -moz-transition:all 300ms ease;
  transition:all 300ms ease;
}
.banner--stick {
  -webkit-transform:translateY(0%);
  -ms-transform:translateY(0%);
  transform:translateY(0%)
}