CSS :before and :after not working?

I am trying to use :before and :after with list but it is not working. I am sure it's a simple mistake but I am not able to point it out.

Any help would be appreciated

Please check the fiddle

<div class="org-chart">
  <ul class="chart chart-prhead">
    <li>
      <span><a href="#">Dabba</a></span>
      <ul class="chart-mgr">
        <li>
          <!-- level 2 -->
          <span><a href="#">Dabba</a></span>

        </li>

      </ul>
    </li>
  </ul>
</div>
   		

.chart ul:after {
  border: 1px solid #f30;
}
.chart li span:after {
  border: 1px solid #eee;
}
.chart li span:before {
  border: 1px solid #ccc;
}
.chart li a:after {
  border: 1px solid #666;
}
.chart li a:before {
  border: 1px solid #333;
}

If you want :before and :after to work, you need to give them content, otherwise they don't really 'exist'. The easiest thing to do is, in the css, set content: '' for both pseudoelements.

You should use :before and :after selectors with content property:

.chart ul:after{
  content: "";
  border:1px solid #f30;
}