rel="stylesheet"
      href="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.4.1/MarkerCluster.Default.css"
    />

    <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.4.1/leaflet.markercluster.js"></script>
    <link rel="stylesheet" href="style.css" />
  </head>

  <body>
    <div id="map"></div>
    <script src="script.js"></script>
  </body>
</html>
