diff --git a/Gemfile b/Gemfile
index afd6a667a..037c606c8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,7 +20,7 @@ gem "builder", "3.0.0"
 gem 'acts-as-taggable-on', '2.4.1'
 gem 'spreadsheet'
 gem 'ruby-ole'
-#gem 'email_verifier'
+#gem 'email_verifier', path: 'lib/email_verifier'
 
 group :development do
   gem 'grape-swagger'
diff --git a/app/views/courses/show.html.erb b/app/views/courses/show.html.erb
index 9f0084019..9c91908d2 100644
--- a/app/views/courses/show.html.erb
+++ b/app/views/courses/show.html.erb
@@ -90,7 +90,7 @@
                       </td>
                     </tr>
                     <tr>
-                      <td class="font_lighter" style="float: right">
+                      <td class="font_lighter" >
                         <%= l :label_create_time %>:
                         <%= format_time(@course.created_at) %>
                   </table>
diff --git a/config/application.rb b/config/application.rb
index 311bf457b..c7f2f3ea5 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -16,7 +16,7 @@ module RedmineApp
     # Application configuration should go into files in config/initializers
     # -- all .rb files in that directory are automatically loaded.
 
-    # verifier if email is real
+    #verifier if email is real
     # EmailVerifier.config do |config|
     #   config.verifier_email = "lizanle521@126.com"
     # end
@@ -74,5 +74,6 @@ module RedmineApp
     if File.exists?(File.join(File.dirname(__FILE__), 'additional_environment.rb'))
       instance_eval File.read(File.join(File.dirname(__FILE__), 'additional_environment.rb'))
     end
+
   end
 end
diff --git a/lib/email_verifier b/lib/email_verifier
new file mode 160000
index 000000000..3cabcc643
--- /dev/null
+++ b/lib/email_verifier
@@ -0,0 +1 @@
+Subproject commit 3cabcc643f36939939685e6f55273dfbf89da545