.overlay_icon_history{
  position: absolute;
  right: 10%;
  bottom: 30%;
  z-index: 1000;
  opacity: 0;
  cursor: pointer;
}
.overlay_icon_lock{
  position: absolute;
  right: 32%;
  bottom: 30%;
  z-index: 1000;
  opacity: 0;
  cursor: pointer;
}
.overlay_icon_move{
  position: absolute;
  left: 32%;
  bottom: 30%;
  z-index: 1000;
  opacity: 0;
  cursor: pointer;
}
.overlay_icon_delete{
  position: absolute;
  left: 10%;
  bottom: 30%;
  z-index: 1000;
  opacity: 0;
  cursor: pointer;
}
.overlay_lock_indicator{
  position: absolute;
  left: 40%;
  top: 25%;
  width: 25%;
  z-index: 500;
  cursor: pointer;
}


.explorerborder:hover .overlay_icon_delete{
  opacity: 1;
}
.explorerborder:hover .overlay_icon_move{
  opacity: 1;
}
.explorerborder:hover .overlay_icon_lock{
  opacity: 1;
}
.explorerborder:hover .overlay_icon_history{
  opacity: 1;
}