# File lib/asciidoctor/converter/html5.rb, line 754
    def sidebar node
      id_attribute = node.id ? %( id="#{node.id}") : nil
      title_element = node.title? ? %(<div class="title">#{node.title}</div>\n) : nil
      %(<div#{id_attribute} class="#{(role = node.role) ? ['sidebarblock', role] * ' ' : 'sidebarblock'}">
<div class="content">
#{title_element}#{node.content}
</div>
</div>)
    end