I want to build a Django CMS template from a template found on <https://startbootstrap.com>.

I have load the following tags

```
{% load cms_tags menu_tags sekizai_tags staticfiles %}

```

and then within the `<body>` part the menu

```
...
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
  <div class="container">
    <a class="navbar-brand" href="#">Start Bootstrap</a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarResponsive">
      <ul class="navbar-nav ml-auto">
        {% show_menu 0 100 100 100 %}
      </ul>
    </div>
  </div>
</nav>
...

```

Unfortunately, the links for the pages in the menu have almost no CSS (see image).

[![menu without css](https://i.stack.imgur.com/SvveP.png)](https://i.stack.imgur.com/SvveP.png)

Basically, the links need to be of class `nav-link`. How can I fix this?