anchor.diff:              <div class="card-tools">
                 <button type="button" class="btn btn-tool" data-card-widget="collapse">
                   <i class="fas fa-minus"></i>
  -              </button>
  -              <button type="button" class="btn btn-tool" data-card-widget="remove">
  -                <i class="fas fa-times"></i>
                 </button>
               </div>
             </div>
  
positive.code:               <button type="button" class="btn btn-tool" data-card-widget="collapse">
                  <i class="fas fa-minus"></i>
                </button>
                <button type="button" class="btn btn-tool" data-card-widget="remove">
                  <i class="fas fa-times"></i>
                </button>
              </div>
            </div>
            <div class="card-body">
  
negative.code:       </div>
      </div>
    </div>
  </div>
  