<!DOCTYPE html>
<html>
  <style>
    body {
      text-align: center;
    }
  </style>
  <body>
    <div>
      <input type="text" placeholder="Enter random seed" id="seed" />
      <input type="submit" value="Redraw" id="redraw" />
    </div>
    <script src="node_modules/d3/d3.min.js"></script>
    <script src="out.js"></script>
  </body>
</html>

<!DOCTYPE html>
<html>
  <style>
    body {
      text-align: center;
    }
  </style>
  <body>
    <div>
      <input type="text" placeholder="Enter random seed" id="seed" />
      <input type="submit" value="Redraw" id="redraw" />
    </div>
    <script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
    <script src="out.js"></script>
  </body>
</html>

Use cdnjs for demo file.
Use cdnjs for demo file.
