index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
    <link rel="stylesheet" href="https://static2.sharepointonline.com/files/fabric/office-ui-fabric-core/11.0.0/css/fabric.min.css" />
    <title>Microsoft Teams Tab</title>
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="root"></div>
    <script src="https://unpkg.com/@microsoft/teams-js/dist/MicrosoftTeams.min.js" crossorigin="anonymous"></script>
    <script src="https://unpkg.com/@microsoft/mgt/dist/bundle/mgt-loader.js"></script>
    <mgt-teams-provider client-id="602b4970-f8a9-4846-9d69-550f7dce8690" auth-popup-url="https://jantoney.github.io/TeamsOOFTab/auth.html"></mgt-teams-provider> 
    <mgt-login></mgt-login>
    <mgt-agenda></mgt-agenda>
  </body>
</html>