title: removing underline of a link
body: <p>I'm making a website at the moment but my underline of the link in my navigation menu won't go away.</p>
  
  <p><strong>HTML:</strong></p>
  
  <pre><code>&lt;header&gt;
  
  
  &lt;ul&gt;
    &lt;li class="first-nav"&gt;&lt;a href="home.html"&gt;HOME&lt;/a&gt;&lt;/li&gt;
    &lt;li&gt;&lt;a href="portofolio.html"&gt;PORTOFOLIO&lt;/a&gt;&lt;/li&gt;
    &lt;li&gt;&lt;a href="contact.html"&gt;CONTACT&lt;/a&gt;&lt;/li&gt;
   &lt;/ul&gt;
  &lt;/header&gt;
  </code></pre>
  
  <p><strong>CSS:</strong> </p>