.ol-control-title {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
}

.ol-center-position {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(255,255,255,.8);
  padding: .1em 1em;
}