app/views/layouts/blacklight.html.erb
<%# We are overriding this Blacklight layout to address WCAG21 1.3.2 (Level A) %>
<% content_for(:content) do %>
<% if content_for? :sidebar %>
<section id="sidebar" class="<%= sidebar_classes %> order-first" aria-label="<%= t('blacklight.search.documents.aria.limit_search') %>">
<%= content_for(:sidebar) %>
</section>
<section id="content" class="<%= main_content_classes %> order-last" aria-label="<%= t('blacklight.search.documents.aria.search_results') %>">
<%= yield %>
</section>
<% else %>
<section class="col-md-12">
<%= yield %>
</section>
<% end %>
<% end %>
<%= render template: 'layouts/blacklight/base' %>