title: When to use `>` sign in CSS?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/3225891/what-does-mean-in-css-rules">What does &ldquo;&gt;&rdquo; mean in CSS rules?</a>  </p>
  </blockquote>
  
  
  
  <p>I came across many many websites and I saw many of them use this type of notation in their css file for creating navigation bar like : </p>
  
  <pre><code>#navigation ul li &gt; ul {
    /* some code in between */
  }
  </code></pre>
  
  <p>but when i omit the <code>&gt;</code> sign as </p>
  
  <pre><code>#navigation ul li ul {
    /* some code in between */
  }
  </code></pre>
  
  <p>this still works the same way.</p>
  
  <p>what is the difference and when to use <code>&gt;</code> sign ?</p>