.ol-swipe {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  touch-action: none;
}

.ol-swipe:before {
  content: "";
  position: absolute;
  top: -5000px;
  bottom: -5000px;
  left: 50%;
  width: 4px;
  background: #fff;
  z-index:-1;
  transform: translate(-2px, 0);
}
.ol-swipe.horizontal:before {
  left: -5000px;
  right: -5000px;
  top: 50%;
  bottom: auto;
  width: auto;
  height: 4px;
}

.ol-swipe,
.ol-swipe button {
  cursor: ew-resize;
}
.ol-swipe.horizontal,
.ol-swipe.horizontal button {
  cursor: ns-resize;
}

.ol-swipe:after,
.ol-swipe button:before,
.ol-swipe button:after {
  content: "";
  position: absolute;
  top: 25%;
  bottom: 25%;
  left: 50%;
  width: 2px;
  background: currentColor;
  transform: translate(-1px, 0);
  -webkit-transform: translate(-1px, 0);
}
.ol-swipe button:after {
  transform: translateX(4px);
}
.ol-swipe button:before {
  transform: translateX(-6px);
}