!!!
%html{lang: "ja"}
  %head
    %meta{charset: "UTF-8"}/
    %meta{content: "width=device-width, initial-scale=1", name: "viewport"}/
    %title poe
    = csrf_meta_tags
    = stylesheet_link_tag("application", media: "all")
  %body
    %nav.navbar.navbar-default.navbar-static-top
      .container-fluid
        .nav.navbar-header.navbar-left
          %a.navbar-brand{href: "/"}= application_name
        %ul.nav.navbar-nav.navbar-right
          %li
            = link_to "about", about_index_path
    .container-fluid
      = yield
    = javascript_include_tag("application")