diff --git a/app/assets/stylesheets/style.css b/app/assets/stylesheets/style.css
index 559bf44..ba9192a 100644
--- a/app/assets/stylesheets/style.css
+++ b/app/assets/stylesheets/style.css
@@ -256,4 +256,5 @@ hr
 }
 .container ul.nav>.nav-item:first-child{
 	padding-left: 80px;
-} 
\ No newline at end of file
+} 
+ 
\ No newline at end of file
diff --git a/app/controllers/api/batch_line_items_controller.rb b/app/controllers/api/batch_line_items_controller.rb
index 91926df..c82695d 100644
--- a/app/controllers/api/batch_line_items_controller.rb
+++ b/app/controllers/api/batch_line_items_controller.rb
@@ -16,6 +16,7 @@ class Api::BatchLineItemsController < ApplicationController
                 user_id=find_user.id
             end
             if !encrypt_key.nil?
+                serial_no=BatchLineItem.generate_serial_no(user_id.to_s)
                 str="manufacture_uid="+manufacture_uid.to_s+"&serial_no="+serial_no.to_s               
                      
                 digest_data= Digest::MD5.hexdigest(str)                 
@@ -24,8 +25,7 @@ class Api::BatchLineItemsController < ApplicationController
                 wristband_code=hex_str[0..15]
 
                 check_manufacture = BatchLineItem.find_by_manufacture_uid_and_wristband_code(manufacture_uid,wristband_code)            
-                if check_manufacture.nil?
-                    serial_no=BatchLineItem.generate_serial_no(user_id.to_s)
+                if check_manufacture.nil?                
              
                     batchLineItem=BatchLineItem.new
                     batchLineItem.wristband_code=wristband_code
diff --git a/app/views/users/index.html.erb b/app/views/users/index.html.erb
index 9978892..bf3e8ba 100644
--- a/app/views/users/index.html.erb
+++ b/app/views/users/index.html.erb
@@ -39,7 +39,7 @@
                       <td><%= user.created_at.strftime("%e,%b %Y %I:%M %p") rescue '' %></td>
                       <td>
                         <%= link_to 'Detail',
-                          user_path(user), :class => 'btn btn-primary btn-sm' %>      
+                          user_path(user), :class => 'btn btn-primary btn-sm ' %>      
                         <%= link_to t('.edit', :default => t("helpers.links.edit")),
                                     edit_user_path(user), :class => 'btn btn-primary btn-sm' %>  
                         <%= link_to 'Delete', user_path(user), method: :delete, data: { confirm: 'Are you sure?' },:class => 'btn btn-primary btn-sm' %>