def all_a_tags
      return unless @page
      tags = []
      @page.css('a').each do |node|
        tags << [node['href'], node['target'], node['rel']]
      end
      tags.compact
    end
def all_a_tags
      return unless @page
      tags = []
      @page.css('a').each do |node|
        tags << [node['href'], node['target'], node['rel']]
      end
      tags.compact
    end
get all a tags