ass="dropdown-menu">
        <button class="dropdown-item" id="loginPopup" onclick="signIn(this.id)">Sign in using Popup</button>
        <button class="dropdown-item" id="loginRedirect" onclick="signIn(this.id)">Sign in using Redirect</button>
      </div>
    </div>
  </nav>
  <br>
  <h5 class="card-header text-center">Vanilla JavaScript SPA calling MS Graph API with MSAL.JS</h5>
  <br>
  <div class="row" style="margin:auto">
    <div id="card-div" class="col-md-3" style="display:none">
      <div class="