sample/app_3.2.13/app/views/layouts/application.html.haml
!!! 5
%html{ :lang => 'en' }
%head
%meta{ :name => "viewport", :content => "width=device-width, initial-scale=1.0" }
%title= page_title
= stylesheet_link_tag "application", :media => "all"
= csrf_meta_tags
%body
%article= yield
= javascript_include_tag "application"