diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 775afadbc29..16401e1f296 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -32,7 +32,7 @@ module ApplicationHelper
   end
 
   def html_classes
-    "#{mobile_view? ? 'mobile-view' : 'desktop-view'} #{mobile_device? ? 'mobile-device' : 'not-mobile-device'} #{RTL.html_class}"
+    "#{mobile_view? ? 'mobile-view' : 'desktop-view'} #{mobile_device? ? 'mobile-device' : 'not-mobile-device'} #{rtl_view? ? 'rtl' : ''}"
   end
 
   def escape_unicode(javascript)
@@ -124,6 +124,21 @@ module ApplicationHelper
     MobileDetection.mobile_device?(request.user_agent)
   end
 
+  def rtl_view?
+     site_default_rtl? || current_user_rtl?
+  end
+
+  def current_user_rtl?
+    SiteSetting.allow_user_locale && current_user.try(:locale).in?(rtl_locales)
+  end
+
+  def site_default_rtl?
+    !SiteSetting.allow_user_locale && SiteSetting.default_locale.in?(rtl_locales)
+  end
+
+  def rtl_locales
+    %w(he ar)
+  end
 
   def customization_disabled?
     controller.class.name.split("::").first == "Admin" || session[:disable_customization]
diff --git a/app/mailers/user_notifications.rb b/app/mailers/user_notifications.rb
index dec6fe7b1cf..6ada3e2e4dd 100644
--- a/app/mailers/user_notifications.rb
+++ b/app/mailers/user_notifications.rb
@@ -198,7 +198,7 @@ class UserNotifications < ActionMailer::Base
     html = UserNotificationRenderer.new(Rails.configuration.paths["app/views"]).render(
       template: 'email/notification',
       format: :html,
-      locals: { context_posts: context_posts, post: post, top: top ? PrettyText.cook(top).html_safe : nil, classes: RTL.html_class }
+      locals: { context_posts: context_posts, post: post, top: top ? PrettyText.cook(top).html_safe : nil }
     )
 
     template = "user_notifications.user_#{notification_type}"
diff --git a/app/models/rtl.rb b/app/models/rtl.rb
deleted file mode 100644
index 4fed8c9178f..00000000000
--- a/app/models/rtl.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class RTL
-
-  def self.enabled?
-    site_locale_rtl? || current_user_rtl?
-  end
-
-  def self.current_user_rtl?
-    SiteSetting.allow_user_locale && current_user.try(:locale).in?(rtl_locales)
-  end
-
-  def self.site_locale_rtl?
-    !SiteSetting.allow_user_locale && SiteSetting.default_locale.in?(rtl_locales)
-  end
-
-  def self.rtl_locales
-    %w(he ar)
-  end
-
-  def self.html_class
-    enabled? ? 'rtl' : ''
-  end
-
-end
diff --git a/app/views/email/notification.html.erb b/app/views/email/notification.html.erb
index 363f2ae46d4..8108cc693f6 100644
--- a/app/views/email/notification.html.erb
+++ b/app/views/email/notification.html.erb
@@ -1,4 +1,4 @@
-<div id='main' class=<%= classes %>>
+<div id='main'>
 
 <% if top.present? %>
   <div><%= top %></div>
diff --git a/lib/email/styles.rb b/lib/email/styles.rb
index c6428ffca72..84e602f5f87 100644
--- a/lib/email/styles.rb
+++ b/lib/email/styles.rb
@@ -53,7 +53,6 @@ module Email
       style('.user-avatar', 'vertical-align:top;width:55px;')
       style('.user-avatar img', nil, width: '45', height: '45')
       style('hr', 'background-color: #ddd; height: 1px; border: 1px;')
-      style('.rtl', 'direction: rtl;')
       # we can do this but it does not look right
       # style('#main', 'font-family:"Helvetica Neue", Helvetica, Arial, sans-serif')
       style('td.body', 'padding-top:5px;', colspan: "2")