JSFiddle - React, Tailwind, and code Playground

CSS

.node circle {
	  fill: #fff;
	  stroke: steelblue;
	  stroke-width: 3px;
	}

	.node text { font: 12px sans-serif; }

	.link {
	  fill: none;
	  stroke: #ccc;
	  stroke-width: 2px;
	}

JavaScript

var treeData = [
  {
    "name": "Top Level",
    "parent": "null",
    "value": 10,
    "type": "black",
    "level": "red",
    "icon": "http://www.bigbiz.com/bigbiz/icons/ultimate/Comic/Comic13.gif",
    "children": [
      {
        "name": "Level 2: A",
        "parent": "Top Level",
        "value": 5,
        "type": "grey",
        "level": "red",
       "icon": "http://www.bigbiz.com/bigbiz/icons/ultimate/Comic/Comic41.gif",
        "children": [
          {
            "name": "Son of A",
            "parent": "Level 2: A",
            "value": 5,
            "type": "steelblue",
            "icon": "",
            "level": "orange"
          },
          {
            "name": "Daughter of A",
            "parent": "Level 2: A",
            "value": 18,
            "type": "steelblue",
            "icon": "http://www.bigbiz.com/bigbiz/icons/ultimate/Comic/Comic114.gif",
            "level": "red"
          }
        ]
      },
      {
        "name": "Level 2: B",
        "parent": "Top Level",
        "value": 10,
        "type": "grey",
        "icon": "",
        "level": "green"
      }
    ]
  }
];

// ************** Generate the tree diagram	 *****************
var margin = {top: 20, right: 120, bottom: 20, left: 120},
	width = 960 - margin.right - margin.left,
	height = 500 - margin.top - margin.bottom;
	
var i = 0;

var tree = d3.layout.tree()
	.size([height, width]);

var diagonal = d3.svg.diagonal()
	.projection(function(d) { return [d.y, d.x]; });

var svg = d3.select("body").append("svg")
	.attr("width", width + margin.right + margin.left)
	.attr("height", height + margin.top + margin.bottom)
  .append("g")
	.attr("transform", 
	      "translate(" + margin.left + "," + margin.top + ")");

root = treeData[0];
  
update(root);

function update(source) {

  // Compute the new tree layout.
  var nodes = tree.nodes(root).reverse(),
	  links = tree.links(nodes);

  // Normalize for fixed-depth.
  nodes.forEach(function(d) { d.y = d.depth * 180;...