chromium/chrome/browser/resources/support_tool/spinner_page.html

<!--
Copyright 2022 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<style include="support-tool-shared">
  paper-spinner-lite {
    display: flex;
    margin: 0 auto;
    margin-top: 30px;
  }
</style>

<h1  id="header" tabindex="0">[[pageTitle]]</h1>
<paper-spinner-lite active>
</paper-spinner-lite>
<div class="navigation-buttons">
  <cr-button id="cancelButton" on-click="onCancelClick_">
    $i18n{cancelButtonText}
  </cr-button>
</div>