{%- for nav_item in nav %}
{%- for nav_item in nav_item.children %}
{%- if nav_item.children %}
{% set nav_class = nav_item.title|lower|replace(" ","-")|replace("(","")|replace(")","") %}
{{ nav_item.title }}
{%- if nav_item.children %}
{%- for nav_item in nav_item.children %}
{% include "nav-sub.html" %}
{%- endfor %}