add new domain button

clientarea.tpl

@@ -409,7 +409,7 @@
                             </table>
                           {/foreach}
                         {/if}
-                        <a href="{$systemurl}clientarea.php?action=productdetails&id={$serviceid}&newDomain" class="btn btn-link">
+                        <a href="{$systemurl}clientarea.php?action=productdetails&id={$serviceid}&newDomain" class="nav-link active">
                           <i class="fas fa-plus fa-fw"></i> Neue Domaine
                         </a>
                       </div>