>> require "hpricot" => true >> doc = Hpricot('') {} => #<Hpricot::Doc> >> doc.html_tag(:div) => #<Hpricot::CssProxy:0xb7a13814> >> doc.html_tag(:p) => #<Hpricot::CssProxy:0xb7a12108> 引数分からず…</hpricot::cssproxy:0xb7a12108></hpricot::cssproxy:0xb7a13814></hpricot::doc>