title: Rails: Image as a link
body: <p>I want to make a link in my nav bar. The problem is that I want an image as the clickable link. So (click on image -> next Site) 
  this is the code I use now for linking with the site. </p>
  
  <pre><code>&lt;a class="nav" &lt;%= link_to "Home", posts_path %&gt; &lt;/a&gt;
  </code></pre>