diff --git a/app/assets/stylesheets/seminar/background_style/8/css/background.css b/app/assets/stylesheets/seminar/background_style/8/css/background.css
index 1e85015..4fdfa2d 100644
--- a/app/assets/stylesheets/seminar/background_style/8/css/background.css
+++ b/app/assets/stylesheets/seminar/background_style/8/css/background.css
@@ -7,7 +7,7 @@
 .layout-footer .layout-footer-inner{
 	background: #ffffff;
 }
-.layout-header{
+.layout-header > .container{
 	background: #01538f;
 }
 body{
diff --git a/app/views/admin/seminars/_seminar_signup_render_table.html.erb b/app/views/admin/seminars/_seminar_signup_render_table.html.erb
index 03fd3c9..9cbe1c3 100644
--- a/app/views/admin/seminars/_seminar_signup_render_table.html.erb
+++ b/app/views/admin/seminars/_seminar_signup_render_table.html.erb
@@ -8,9 +8,11 @@
             <% if @drag%>
             <th></th>
             <% end %>
-            <% @field_name_translations.each_with_index do |trans,i|%>
-                <% next unless @display_field.include?(@field_names[i]) %>
-                <th class="span2" id="<%=@field_names[i]%>"><%= trans %></th>
+            <%
+              @field_name_translations = @field_name_translations.map.with_index{|trans,i| [@field_names[i], trans]}.to_h
+            %>
+            <% @display_field.each do |field_name| %>
+              <th class="span2" id="<%= field_name %>"><%= @field_name_translations[field_name] %></th>
             <% end %>
         </tr>
     </thead>