# File lib/rd/rd2html-lib.rb, line 201
    def consist_of_one_textblock_and_sublists(element)
      i = 0
      element.each_child do |child|
        if i == 0
          return false unless child.is_a?(TextBlock)
        else
          return false unless child.is_a?(List)
        end
        i += 1
      end
      return true
    end