app/views/layouts/application.html.haml (12 lines of code) (raw):
!!! 5
%html{ lang: "en"}
= render 'layouts/head'
%body{ :'data-page' => body_data_page }
= render 'layouts/nav'
= render 'layouts/info'
- if content_for?(:title)
.container.container-title
= yield(:title)
%hr
.container.container-body
= yield