chromium/chrome/browser/resources/chromeos/manage_mirrorsync/components/manage_mirrorsync.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>
  form {
    border: 1px solid var(--cros-separator-color);
    border-radius: 12px;
    margin: 10px;
  }

  .sync-selection-row {
    align-items: center;
    border-bottom: 1px solid var(--cros-separator-color);
    display: flex;
    flex-wrap: wrap;
  }

  .sync-selection-row:last-child {
    border-bottom: none;
  }

  .radio-wrapper {
    margin-inline-start: 16px;
    width: 32px;
  }

  input[type='radio'] {
    margin: 0;
  }

  .sync-selection-description {
    padding: 16px 0 16px;
  }

  .sync-selection-description h2 {
    color: var(--cros-text-color-primary);
    font-size: 14px;
    font-weight: 400;
    line-height: 20px;
    margin: 0;
    padding: 0;
  }

  .sync-selection-description p {
    color: var(--cros-text-color-secondary);
    font-size: 14px;
    font-weight: 400;
    margin: 0;
  }
</style>
<form>
  <label class="sync-selection-row">
    <div class="radio-wrapper">
      <input type="radio" name="selection" value="everything" id="everything">
    </div>
    <div class="sync-selection-description">
      <h2>Sync everything on this Chromebook</h2>
      <p>All files (except Play and Linux files) back up to Google Drive.</p>
    </div>
  </label>
  <label class="sync-selection-row">
    <div class="radio-wrapper">
      <input type="radio" name="selection" value="selected" id="selected">
    </div>
    <div class="sync-selection-description">
      <h2>Sync selected files or folders</h2>
    </div>
  </label>
  <folder-selector hidden></folder-selector>
</form>