!!!
%html
%head
%meta{:content => "text/html; charset=UTF-8", "http-equiv" => "Content-Type"}/
%meta{:name => "viewport", :content => "width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"}
%title Tab
= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true
= javascript_include_tag 'application', 'data-turbolinks-track' => true
= csrf_meta_tags
%body
.pure-g
= render 'menu' if current_user
.pure-u-1
= render 'flash'
= yield