title: z-index not working with my background link
body: <p>I pass my background image through a hyperlink in order to link the background image it work but when i added z-index:-1; it did not work anymore below is my code help me with it thanks.</p>
  
  <pre><code>.bg {
      position: fixed;
      background:url(../bg.png) 0 0 no-repeat;
      width:1365px;
      height:665px;
      z-index:-1;
  }
  
  &lt;a href="home.html" class="bg"&gt;Ad&lt;/a&gt;
  </code></pre>