rssguard/resources/skins/vergilius/html_single_message.html

<div class="card filled fluid" dir="auto">
  <h5 class="doc section">%1 <a class="button small primary" href="%3">🔗URL</a> %6</h5>
  <div class="doc section">
    <div style="text-align: center;">
      %2, %5
    </div>
    <div style="padding: 2px; margin: 0px;">
      %7
    </div>
    %4
  </div>
</div>