:host {
  position: absolute;
  background: gainsboro;
  border-radius: var(--radius);
  width: var(--radius);
  height: var(--radius);
  border: thin solid;
  transform: translate(-50%, -50%);
  cursor: zoom-out;
  cursor: default;
}

:host(.selected) {
  background-color: lightslategray;
}