max
The maximum horizontal pan offset relative to the dimensions of the ReaderView, defined as a CSS string in pixels or percentage.
If this option is not specified or set to null, the value from IReaderViewOptions.gestureOptions.panZoom.maxPanOffsetHorizontal will be used.
Example: Setting it to "0%" will not allow the left side of the publication to be panned further right than the left side of the ReaderView. (and the opposite for the right side)
Example: Setting it to "50%" will allow the left side of the publication to be panned to the midpoint of the ReaderView. (and the same for the right side)
Example: Setting it to "100%" will allow the publication to be panned all the way outside the ReaderView.
Example: Setting it to 80 CSS_PIXELS (or DEVICE_PIXELS) will not allow the left side of the publication to be panned further right than 80 CSS_PIXELS (or DEVICE_PIXELS) from the left side of the ReaderView (and the opposite for the right side).