anchor.diff:  
             <% if flash[:success].present? %>
                 <div class="row">
  -                <div class="col-cs-12">
  +                <div class="col-xs-12">
                     <p class="bg-success text-danger" style="padding: 15px;"><%= flash[:success] %></p>
                   </div>
                 </div>
  
positive.code: <div id="content_wrap">
      <div class="container-fluid">
        <div class="row">
          <div class="col-cs-12 col-md-2 visible-md-block visible-lg-block">
            <% menu_items_in_array.each do |menu| %>
                <p>
                <div><strong><%= menu[:name] %></strong></div>
  
negative.code:           <% end %>
          </div>
  
          <div class="col-xs-12 col-md-10">
            <% if flash[:error].present? %>
                <div class="row">
                  <div class="col-xs-12">
                    <p class="bg-danger text-danger" style="padding: 15px;"><%= flash[:error] %></p>
                  </div>
                </div>
  