Blank space in menu with bootstrap

Good afternoon,

I'm trying to split a menu with a white line in the middle with css.

I managed to do it, but on the right side the menu gets a space without the line and in the items that are below is the white line also sort of picking up the menu border.

TheCSScode:

#menu.navli{border-bottom:1pxsolidWhite;}.navbar-collapse.collapse{padding-left:0;padding-right:0;margin:0;

}

HTML:

<divclass="collapse navbar-collapse navbar-ex1-collapse">
  <ul class="nav navbar-nav">
    {% for category in categories %}
    {% if category.children %}
    <li class="dropdown"><a href="{{ category.href }}" class="dropdown-toggle" data-toggle="dropdown">{{ category.name }}</a>
      <div class="dropdown-menu">
        <div class="dropdown-inner"> {% for children in category.children|batch(category.children|length / category.column|round(1, 'ceil')) %}
          <ul class="list-unstyled">
            {% for child in children %}
            <li><a href="{{ child.href }}">{{ child.name }}</a></li>
            {% endfor %}
          </ul>
          {% endfor %}</div>
        <a href="{{ category.href }}" class="see-all">{{ text_all }} {{ category.name }}</a> </div>
    </li>
    {% else %}
    <li><a href="{{ category.href }}">{{ category.name }}</a></li>
    {% endif %}
    {% endfor %}
  </ul>
</div>