!!!
%html{:xmlns => 'http://www.w3.org/1999/xhtml'}
  %head
    %title Sinatra File Upload
    %link{:rel => 'stylesheet', :type => 'text/css', :href => 'css/style.css'}
    %meta{:content => 'text/html; charset=utf-8', :'http-equiv' => 'Content-Type'}
  %body
    = yield