div.stub *:contains("red") { background-color : lime }
.red { background-color : red }

<div class="stub">
  <p class="red">This paragraph should have a green background</p>
  <p>This paragraph should NOT have a green background</p>
  <ul>
    <li>All this list, including bullets, should NOT have a gr</li>
<li>een background</li>
  </ul>
</div>