bootstrap@5.0.0-beta3/dist/js/bootstrap.bundle.min.js"
          integrity="sha384-JEW9xMcG8R+pH31jmWH6WWP0WintQrMb4s7ZOdauHnUtxwoG2vI5DkLtS3qm9Ekf"
          crossorigin="anonymous"
        ></script>


        <center>
          <h1></h1>
        </center>
        <style type="text/css">

             #mynetwork {
                 width: 100%;
                 height: 750px;
                 background-color: #222222;
                 border: 1px solid lightgray;
                 position: relative;
     