.tree {
    width: 75em;
    height: 50em;
}

.tree .node circle {
    cursor: pointer;
    fill: #fff;
    stroke: steelblue;
    stroke-width: 1.5px;
}

.tree .node text {
    cursor: pointer;
}

.tree path.link {
    fill: none;
    stroke: #ccc;
    stroke-width: 1.5px;
}
.node circle {
  cursor: pointer;
  fill: #fff;
  stroke: steelblue;
  stroke-width: 1.5px;
  cursor: pointer;
}

.node text {
  font-size: 11px;
  cursor: pointer;
}

path.link {
  fill: none;
  stroke: #ccc;
  stroke-width: 1.5px;
}

body > div.container > section > section > div > div.content > div > a {
    margin-left: 181px;
}