anchor.diff:      <!-- BEGIN HEAD -->
       <head>
           <%= csrf_meta_tags %>
  -        
  +
           <meta charset="utf-8" />
           <title><%= yield(:title) %> | ERP, Enterprise Resource Planning Software, ERP Software, ERP System, ERP Solutions | Global Naturesoft</title>
           <meta http-equiv="X-UA-Compatible" content="IE=edge">
           <meta content="width=device-width, initial-scale=1" name="viewport" />
           <meta content="" name="description" />
           <meta content="" name="author" />
  -        
  +
           <link href="https://fonts.googleapis.com/css?family=Roboto:100,100i,300,300i,400,400i,500,500i,700,700i,900,900i&amp;subset=vietnamese" rel="stylesheet">
  -        
  +
           <!-- BEGIN GLOBAL MANDATORY STYLES -->
           <%= stylesheet_link_tag "http://fonts.googleapis.com/css?family=Open+Sans:400,300,600,700&subset=all" %>
           <%= stylesheet_link_tag "/backend/assets/global/plugins/font-awesome/css/font-awesome.min.css" %>
  
positive.code: <!DOCTYPE html>
  <!-- 
  App name: ERP, Enterprise Resource Planning Software, ERP Software, ERP System, ERP Solutions
  Version: 1.0.0
  Author: Luan Pham, Son Nguyen, Hung Nguyen
  
negative.code:         <%= stylesheet_link_tag "/backend/assets/global/plugins/bootstrap-tagsinput/bootstrap-tagsinput-typeahead.css" %>
          <%= stylesheet_link_tag "/backend/assets/global/plugins/icheck/skins/all.css" %>
          <%= stylesheet_link_tag "/backend/assets/global/plugins/bootstrap-sweetalert/sweetalert.css" %>
  
          <%= stylesheet_link_tag "/backend/assets/global/plugins/bootstrap-daterangepicker/daterangepicker.min.css" %>
          <%= stylesheet_link_tag "/backend/assets/global/plugins/bootstrap-datepicker/css/bootstrap-datepicker3.min.css" %>
          <%= stylesheet_link_tag "/backend/assets/global/plugins/bootstrap-timepicker/css/bootstrap-timepicker.min.css" %>
          <%= stylesheet_link_tag "/backend/assets/global/plugins/bootstrap-datetimepicker/css/bootstrap-datetimepicker.min.css" %>
          <%= stylesheet_link_tag "/backend/assets/global/plugins/clockface/css/clockface.css" %>
  
          <%= stylesheet_link_tag "/backend/assets/global/plugins/bootstrap-toastr/toastr.min.css" %>
          <!-- END PAGE LEVEL PLUGINS -->
          <!-- BEGIN THEME GLOBAL STYLES -->
  