v11.0.0

It's not required (or even possible) anymore to pass in divId when showing a chart. Nor can you pass in class to set a class on the <div> we create. All styling should be applied to the parent element of <si-seatsio-seating-chart>.

To show multiple charts on the same page, simply use several <si-seatsio-seating-chart> elements - without providing divId.