docs: function (classes, printOptions) {
                  classes = classes.replace(/(\s|^)\s*xPrint\w*/g, '');
                  if (printOptions == "adaptX") {
                      classes += " xPrintAdaptX";
                  } else if (printOptions == "adaptY") {
                      classes += " xPrintAdaptY";
                  } else if (printOptions == "adaptXY") {
                      classes += " xPrintAdaptX xPrintAdaptY";
                  } else if (printOptions == "hidden") {
                      classes += " xPrintHide";
                  }
                  return classes;
              }