ipi-jquery/exemples/jquery/selecteurs-cibler-un-element-enfant/example.html

<div id="main">
  <p>Paragraphe 1</p>
  <div class="section">
    <p>Paragraphe 2</p>
    <div><p>Paragraphe 3</p></div>
    <div><div>Div très imbriquée</div></div>
  </div>
  <div class="section">
    <p>Paragraphe 4</p>
    <div><p>Paragraphe 5</p></div>
  </div>
  <div class="pas-une-section">
  </div>
</div>