div.customHandle {
  width: 100%;
  height: 100%;
  background: blue;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 0;
  transform: none;
  border: none;
  opacity: 0;
}

div.metricHandle {
  position: absolute;
  min-width: 0;
  min-height: 0;
  width: 0;
  height: 0;
  border: none;
  transform: none;
  opacity: 0;
}