{{ define "sidebar" }}
    <div class="leading-none mb-12">
        <span class="title-pretext">session ⦚ </span><span class="title-text pt-6">{{ .Title }}</span>
    </div>

    {{ if ne (trim .Page.TableOfContents "\n") "<nav id=\"TableOfContents\"></nav>" }}
    <div class="ddmenu">
        <input id="toggly-toc" type="checkbox" >
        <label for="toggly-toc" class="sidebar-title" tabindex="1">▒▒ table of contents ▽</label>
        <div class="hiddendiv">
            <div class="mt-4">
                {{ .Page.TableOfContents }}
            </div>
        </div>
    </div>
    {{ end }}

      <div class="ddmenu">
          <input id="toggly-isin" type="checkbox">
          <label for="toggly-isin" class="sidebar-title mt-4 mb-1" tabindex="1">▒▒ is in ▽</label>
          <div class="hiddendiv">

  <ul class="mt-4">
  {{ $currentNode := . }}
  {{ range (where $.Site.RegularPages ".Section" "topic") }}
    {{ if in .Params.has_sessions $currentNode.File.BaseFileName }}
      <li><a class="sidebar-list text-base" href="{{ .RelPermalink }}{{ if eq hugo.Environment "offline" }}index.html{{ end }}">↖ topic ⦚ {{ .Title }}</a></li>
    {{ end }}
  {{ end }}
  </ul>
          </div>
      </div>
{{ end }}

{{define "main" }}
<article>
        <div class="content-text">{{ .Content }}</div>
</article>
{{ end }}