Haml version of Middleman's default layout

layout.haml

!!! 5
%head
  %meta{:charset => "utf-8"}
  /#Always force latest IE rendering engine (even in intranet) & Chrome Frame
  %meta{:content => "IE=edge,chrome=1", "http-equiv" => "X-UA-Compatible"}

  = stylesheet_link_tag 'site'
  = yield_content :head
  
%body{:class => page_classes}
  #main{:role => "main"}
    = yield