demo-01-graph-tile.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>D3 - Animated tile chart using Firebase</title>
  <!-- The core Firebase JS SDK is always required and must be listed first -->
  <script src="https://www.gstatic.com/firebasejs/8.0.2/firebase-app.js"></script>
  <!-- Not in the provided script, add it manually -->
  <script src="https://www.gstatic.com/firebasejs/8.0.2/firebase-firestore.js"></script>
</head>
<body>
  <div class="box"></div>

  <!-- script src="https://d3js.org/d3.v6.min.js"></script -->
  <script src="assets/js/d3/d3.min.js"></script>
  <script src="assets/js/demo-01-graph-tile-firebase.js"></script>
  <script src="assets/js/demo-01-graph-tile.js"></script>
</body>
</html>