title: Border-bottom needs to move up on hover
body: <p>I want to have a border (looks like underline) that moves up on hover.</p>
  
  <p>So if this is a link:</p>
  
  <p>LINK</p>
  
  <p>Then if I hover on it</p>
  
  <p>LINK<br>
  """"</p>
  
  <p>Example from the website:
  <a href="http://matthias-schoenaerts.com/" rel="nofollow">http://matthias-schoenaerts.com/</a>
  (navigation bar)</p>
  
  <p>I want it as simple as possible.</p>
  
  <p>This is what I came up with:
  <a href="http://jsfiddle.net/Lxxqz3pL/" rel="nofollow">http://jsfiddle.net/Lxxqz3pL/</a></p>
  
  <p>HTML:</p>
  
  <pre><code>&lt;ul id="nav"&gt;
    &lt;li&gt;&lt;a href="#"&gt;About Us&lt;/a&gt;&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;Our Products&lt;/a&gt;&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;FAQs&lt;/a&gt;&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;Contact&lt;/a&gt;&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;Login&lt;/a&gt;&lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>CSS:</p>
  
  <pre><code>/* Begin Navigation Bar Styling */
  #nav {
  width: 100%;
  float: center;
  margin: 0 0 3em 0;
  left: 0;
  padding: 0;
  list-style: none;
  background-color: #333333;
  border-bottom: 1px solid #ccc; 
  border-top: 1px solid #ccc; 
  position: absolute;
  }
  
  #nav li {
  float: left; 
  }
  
  #nav li a {
  display: block;
  padding: 8px 15px;
  text-decoration: none;
  font-weight: bold;
  color: #a3a3a3;
  }
  
  #nav li a:hover {
  transition: border .5s ease-in;
  background-color: #fff; 
  border-bottom: 3px solid red;
  }
  /* End navigation bar styling. */
  </code></pre>