<ul class=“nav nav-pills d-print-none mb-3”>

<li class="nav-item">
  <a class="nav-link {% if page.name contains 'index' %}active{% endif %}" href="{{ site.conference.location.url | prepend: site.baseurl }}">
    {{ site.data.lang[site.conference.lang].location.directions | default: "Directions" }}
  </a>
</li>
{%- for room in site.rooms -%}
  <li class="nav-item">
    {%- if room.hide %}
      <span class="nav-item nav-link disabled">
        {{ room.name }}
      </span>
    {%- else %}
      <a class="nav-link {% if this_room.name == room.name %}active{% endif %}" href="{{ room.url | prepend: site.baseurl }}">
        {{ room.name }}
      </a>
    {%- endif %}
  </li>
{%- endfor -%}
{%- for room in site.rooms -%}
  {%- assign room_displayed = false -%}
  {%- for d in site.data.program.days -%}
    {%- for r in d.rooms -%}
      {%- if room.name == r.name -%}
        {%- assign room_displayed = true -%}
        {%- break -%}
      {%- endif -%}
    {%- endfor -%}
  {%- endfor -%}
  {%- unless room_displayed %}
    <li class="nav-item">
      {%- if room.hide or site.conference.location.hide %}
        <span class="nav-item nav-link disabled">
          {{ room.name }}
        </span>
      {%- else %}
        <a class="nav-link {% if this_room.name == room.name %}active{% endif %}" href="{{ room.url | prepend: site.baseurl }}">
          {{ room.name }}
        </a>
      {%- endif %}
    </li>
  {%- endunless -%}
{%- endfor %}

</ul>