d3 force simulation

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
​
  <style>
  </style>
</head>
​
<body>
  <h1>Force Directed layout</h1>
  <svg 
    width=400 
    height=400
    id="network"></svg>
  
    <script src="https://d3js.org/d3.v4.min.js"></script>
  <script>
​
  
</script>
</body>
​
    

https://d3js.org/d3.v4.min.js