index.html

<!doctype html>

<html>
  <head>
    <title>xtrm-sports</title>

    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <link rel="manifest" href="/manifest.json">

    <script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
    <script src="/src/scripts/const.js"></script>
    <script src="/src/scripts/string.replaceAll_polyfill.js"></script>
    <script src="/src/scripts/tools.js"></script>
    <!--<script src="/src/scripts/inert.js"></script>-->

    <link rel="import" href="/src/xtrm-sports.html">

    <link rel="stylesheet" href="src/styles/main.css">
    <style>
      html, body {
        margin: 0;
        padding: 0;
        width: 100vw;
        height: 100vh;
      }
    </style>
  </head>
  <body>
    <xtrm-sports></xtrm-sports>
  </body>
</html>