html, body {
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
svg {
  width: 100%;
  height: 100%;
  background: black;
}
.cell {
  stroke-width: 0;
}
.leaf {
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}
.label {
  font-family: sans-serif;
  font-size: 8px;
  fill: white;
  pointer-events: none;
}