docs: function() {
        container.find('.kelmu-annotation').resizable({
          start: function() {
            var elem = $(this);
            var data = window.kelmu.data[id];
            data.selectedElementNumber = parseInt(elem.attr('data-annotation'), 10);
            if (elem.css('background-color') === 'transparent' || elem.css('background-color') === 'rgba(0, 0, 0, 0)') {
              elem.css('background-color', 'rgba(0, 0, 0, 0.1)');
            }
          },
          stop: function() {
            restoreRotation.call(this);
            updatePosition.call(this);
            notifyModifications();
            updateView(false, true);
          }
        });
      }