another one for https://github.com/opnsense/core/issues/303

src/www/services_rfc2136.php

@@ -168,8 +168,12 @@ $main_buttons = array(
 										  ?>
 										  </td>
 										  <td valign="middle" class="list nowrap">
-											<a href="services_rfc2136_edit.php?id=<?=$i;?>"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0" alt="edit" /></a>
-											&nbsp;<a href="services_rfc2136.php?act=del&amp;id=<?=$i;?>" onclick="return confirm('<?=gettext("Do you really want to delete this client?");?>')"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" border="0" alt="delete" /></a>
+											<a href="services_rfc2136_edit.php?id=<?=$i;?>">
+											<button type="button" class="btn btn-xs btn-default"><span class="fa fa-pencil"></span></button> 
+											</a>
+											<a href="services_rfc2136.php?act=del&amp;id=<?=$i;?>" onclick="return confirm('<?=gettext("Do you really want to delete this client?");?>')">
+											<button type="button" class="btn btn-xs btn-default"><span class="fa fa-trash-o"></span></button>
+											</a>
 										  </td>
 										</tr>
 										<?php $i++; endforeach; ?>