.title {
    font-size: 25px;
}

.title,
.footer,
.label {
    font: 15px "Helvetica Neue", Helvetica, Arial, sans-serif;
    text-anchor: middle;
}

.node {
  cursor: pointer;
}

.node:hover {
  stroke: rgba(0, 0, 0, 0.67);
  stroke-width: 1.5px;
}

.label,
.node--leaf {
  pointer-events: none;
}