cupper-hugo-theme/themes/infusion/layouts/shortcodes/note.html

<aside aria-label="note" class="note">
  <div>
    <svg aria-hidden="true" height="41.667" width="41.667" viewBox="0 0 41.667306 41.66729">
      <use xlink:href="#info"></use>
    </svg>
    {{ .Inner }}
  </div>
</aside>