docs: function handleMouseMove (e) {
                      if(enabled){
                          if (pushed) {
                              if(!axis || axis === 'x') {
                                  $element[0].scrollLeft -= (-lastClientX + (lastClientX = e.clientX));
                              }
                              if(!axis || axis === 'y') {
                                  $element[0].scrollTop -= (-lastClientY + (lastClientY = e.clientY));
                              }
                          }
  
                          e.preventDefault();
                      }
                  }