How to target a specific div out of 4 divs with the same class with CSS
<p>How do I target the 4th div (with class .col-sm-3) with CSS in following example?</p>

<pre><code>&lt;footer id="footer"&gt;
  &lt;div class="container"&gt;
    &lt;div class="row"&gt;
      &lt;div class="col-sm-3"&gt;...&lt;/div&gt;
      &lt;div class="col-sm-3"&gt;...&lt;/div&gt;
      &lt;div class="col-sm-3"&gt;...&lt;/div&gt;
      &lt;div class="col-sm-3"&gt;...&lt;/div&gt;
    &lt;/div&gt; &lt;!--/.row--&gt;
   &lt;/div&gt; &lt;!--/.container--&gt;
  &lt;/div&gt; &lt;!--/#footer--&gt;
</code></pre>

<p>Thank you!</p>