<html>

  <head>
    <meta charset="UTF-8">
    <title>Alertmanager</title>
    <link rel="stylesheet" href="https://unpkg.com/tachyons@4.5.3/css/tachyons.min.css"/>
  </head>

  <body>
    <header class="bg-black-90 fixed w-100 ph3 pv3 pv4-ns ph4-m ph5-l">
      <nav class="f6 fw6 ttu tracked">
        <a class="link dim white dib mr3" href="#" title="Home">AlertManager</a>
        <a class="link dim white dib mr3" href="#/alerts" title="Alerts">Alerts</a>
        <a class="link dim white dib mr3" href="#/silences" title="Silences">Silences</a>
        <a class="link dim white dib" href="#/status" title="Status">Status</a>
      </nav>
    </header>

    <!-- Container -->
    <div class="pt6 w-100 center pa3">
      <div id="app"></div>
    </div>

  </body>

  <!-- Your source after making -->
  <script type="text/javascript" src="/script.js"></script>

  <!-- Removes splash and starts elm app. -->
  <script type="text/javascript">
    var node = document.getElementById('app');
    var app = Elm.Main.embed(node);
  </script>

</html>

<html>

  <head>
    <meta charset="UTF-8">
    <title>Alertmanager</title>
    <link rel="stylesheet" href="https://unpkg.com/tachyons@4.5.3/css/tachyons.min.css"/>
    <script src="https://use.fontawesome.com/b7508bb100.js"></script>
  </head>

  <body>
    <header class="bg-black-90 fixed w-100 ph3 pv3 pv4-ns ph4-m ph5-l">
      <nav class="f6 fw6 ttu tracked">
        <a class="link dim white dib mr3" href="#" title="Home">AlertManager</a>
        <a class="link dim white dib mr3" href="#/alerts" title="Alerts">Alerts</a>
        <a class="link dim white dib mr3" href="#/silences" title="Silences">Silences</a>
        <a class="link dim white dib" href="#/status" title="Status">Status</a>
      </nav>
    </header>

    <!-- Container -->
    <div class="pt6 w-100 center pa3">
      <div id="app">
        <i class="fa fa-cog fa-spin fa-3x fa-fw"></i>
        <span class="sr-only">Loading...</span>
      </div>
    </div>

  </body>

  <!-- Your source after making -->
  <script type="text/javascript" src="/script.js"></script>

  <!-- Removes splash and starts elm app. -->
  <script type="text/javascript">
    var node = document.getElementById('app');
    var app = Elm.Main.embed(node);
  </script>

</html>

Add font-awesome and loading spinner
Add font-awesome and loading spinner
