anchor.diff:                <div class="tt-subject">
                   <% if  @timetable[d.id][ct.id].present? %>
                     <% unless  @timetable[d.id][ct.id].subject.elective_group.nil? %>
  -                    <div class="subject">
  +                    <div class="subject themed_text">
                         <%= @timetable[d.id][ct.id].subject.elective_group.name %>
  -                      <span>
  +                      <span class="themed_text">
                           <% @timetable[d.id][ct.id].subject.elective_group.subjects.each do |s| %>
                             <%= s.name unless s.nil? %>
                             <% @sub_emp = s.employees %>
  
positive.code:         &nbsp;</td><!--timetable_td_tl -->
        <td class="td-blank"></td>
        <% @class_timing.each do |pt| %>
          <td class="td"><div class="top"><%=pt.start_time.strftime("%I:%M%p")  unless pt.start_time.nil? %> - <%= pt.end_time.strftime("%I:%M%p")  unless pt.end_time.nil? %></div></td>
        <% end %>
      </tr> <!-- timetable_tr -->
      <tr class="blank">
  
negative.code:                       <%= t('elective') %>
                      </div>
                    <% else %>
                      <div class="subject themed_text">
                        <%= @timetable[d.id][ct.id].subject.code %>
                        <span class="themed_text">
                          <%= @timetable[d.id][ct.id].subject.name %>
                          <div class="emp-name">
                            <%= @timetable[d.id][ct.id].employee.full_name unless @timetable[d.id][ct.id].employee.nil? %>
  