<header class=“bg-black-90 fixed top-0 w-100 ph3 pv3 pv4-ns ph4-m ph5-l z-2”>

{%- assign default_paths = site.pages | map: "path" -%}
{%- assign page_paths = site.header_pages | default: default_paths -%}

{%- if page_paths -%}
<nav class="f6 fw6 ttu tracked tl tr-ns relative tc">
  <a class="relative block absolute-ns dib-ns left-0 link dim white " href="{{ "/" | relative_url }}">{{ site.title }}</a>
  {%- for path in page_paths -%}
    {%- assign my_page = site.pages | where: "path", path | first -%}
    {%- if my_page.title -%}
    <a class="link dim white dib mr3" href="{{ my_page.url | relative_url }}" title="{{ my_page.title | escape }}">{{ my_page.title | escape }}</a>
    {%- endif -%}
  {% endfor -%}
</nav>
{%- endif -%}

</header>