<header class="site-header sticky-top" role="banner">
  <nav class="navbar navbar-dark navbar-expand-md bg-faded justify-content-center">
    <a class="navbar-brand" href="{% link index.md %}"><img width="138px" src="{% link /assets/white-logo.png %}" /></a> {% assign default_paths = site.pages | map: "path" %} {% assign page_paths = site.header_pages | default: default_paths %} {% if page_paths %}
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsingNavbar3">
    