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:                       <%= t('elective') %>
                      </div>
                    <% else %>
                      <div class="subject">
                        <%= @timetable[d.id][ct.id].subject.code %>
                        <span>
                          <%= @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? %>
  
negative.code:     </tr>
      <%- @day.each do |d| -%>
        <tr>
          <td class="td"><div class="name themed_text"><%= t(Date::DAYNAMES[d.day_of_week].downcase).upcase -%></div></td>
          <td class="td-blank"></td>
          <%- @class_timing.each do |ct| -%>
            <td class="td">
  