*[class="a"] {color:blue}
div.fred * p {color:red }
div * p {color:green}
. . .
<div class="fred">
  <dl><dt>First Term</dt><dd><p>A Paragraph</p></dd></dl>
  <div>
    <p>First para inside another div</p>
    <p>Second para inside another div</p>
  </div>
  <p>Para not inside anything other than outer div</p>
</div>
<p>Not in &lt;div class="fred">:</p>
<div>
  <dl><dt class="a">First Term</dt><dd><p>A Paragraph</p></dd></dl>
  <div>
    <p>First para inside another div</p>
    <p>Second para inside another div</p>
  </div>
  <p>Para not inside anything other than outer div</p>
</div>