anchor.diff:          </div>
           <% if @all_brands.length > 20 %>
             <div class="collapse-btn pull-left text-right">
  -            <div class="btn open-btn">展开 <small><span class="glyphicon glyphicon-chevron-up"></span></small></div>
  -            <div class="btn close-btn">收起 <small><span class="glyphicon glyphicon-chevron-down"></span></small></div>
  +            <div class="btn open-btn">展开 <small><span class="glyphicon glyphicon-chevron-down"></span></small></div>
  +            <div class="btn close-btn">收起 <small><span class="glyphicon glyphicon-chevron-up"></span></small></div>
             </div>
           <% end %>
         </div>
  
positive.code:         </div>
          <% if @all_categries.length > 20 %>
            <div class="collapse-btn pull-left text-right">
              <div class="btn open-btn">展开 <small><span class="glyphicon glyphicon-chevron-up"></span></small></div>
              <div class="btn close-btn">收起 <small><span class="glyphicon glyphicon-chevron-down"></span></small></div>
            </div>
          <% end %>
        </div>
  
negative.code:         <% if params["sort"] == 'ASC' %>
            <div class="btn--orders btn--sale-price active up">
          <% else %>
            <div class="btn--orders btn--sale-price active down">
          <% end %>
        <% else %>
          <div class="btn--orders btn--sale-price">
  