.graticule {
  fill: none;
  stroke: #fff;
  stroke-width: 5.0px;
}

.graticule :nth-child(2n+16) {
  stroke-dasharray: 2,2;
}

.graticule :nth-child(-2n+15) {
  stroke-dasharray: 2,2;
}

.tectonic {
  fill: none;
  stroke: #000;
  opacity: 0;
  stroke-width: 2px;
}