{{/* Help (mockup help.html): one topic per heading, stacked in one box per section
     of the panel, with a menu that jumps to each. A box on another page links to
     the topic that explains it by the topic's id (Box.Help). A section is absent
     for a viewer who cannot open its pages, and so is its part of the menu. */}}
{{define "content"}}
{{template "page_head" .Head}}

<div class="columns">
  <div class="column is-3">
{{template "side_menu" .Menu}}
  </div>
  <div class="column is-9">
{{range .Groups}}
{{template "box_open" .Box}}
{{range .Topics}}{{template "help_topic" .}}
{{end}}
{{template "box_close"}}
{{end}}
  </div>
</div>
{{end}}