D3 Examples - Bubble chart w/ stopped force

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<!DOCTYPE html>
<meta charset="utf-8">
​
<head>
  <meta charset="utf-8">
  <title>Progress</title>
  <!-- D3 -->
  <script src="https://d3js.org/d3.v5.min.js"></script>
​
  <!-- Annotation -->
  <!-- <script src='https://cdnjs.cloudflare.com/ajax/libs/d3-annotation/2.3.1/d3-annotation.independent.js'></script>-->
  <script src='https://cdnjs.cloudflare.com/ajax/libs/d3-annotation/2.3.1/d3-annotation.js'></script>
  <!-- Legend -->
  <script src='https://cdnjs.cloudflare.com/ajax/libs/d3-legend/2.25.6/d3-legend.js'></script>
  <!-- CSS -->
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <script src="app.js" type="text/javascript"></script>
  <div id="div_template"></div>
  <div id="spinner-container"></div>
  <div id="viz-container" width="100%" height="100%"></div>
</body>
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