<% content_for :title, "All categories - GOV.UK" %>
<% content_for :page_class, "browse" %>

<div class="browse-panes root" aria-live="polite" tabindex="-1">
  <div id="root" class="pane">
    <ul>
      <% root_sections.each do |result| %>
        <li><%= link_to result.title, result.web_url %></li>
      <% end %>
    </ul>
  </div>
</div>

<% content_for :title, "All categories - GOV.UK" %>
<% content_for :page_class, "browse" %>

<div class="browse-panes root" aria-live="polite">
  <div id="root" class="pane" tabindex="-1">
    <ul>
      <% root_sections.each do |result| %>
        <li><%= link_to result.title, result.web_url %></li>
      <% end %>
    </ul>
  </div>
</div>

Fix tabindex on index page
Fix tabindex on index page

The tabindex needs to be added to the element which contains the
individual list not the element which contains all the lists.
