My large museum iBook 1.5 gb is about to be ready. Everything is fine on ipad but when I tried
install it on my new iphone 6 I discovered that all stage elements are reduced to about half size.
This makes all text impossible to read and you can not use the menu at all.
Viewing it as a normal webpage everything is OK.
The intro pages made in ibooks author are correct.
The index file I use is reduced to minimum code as recomended and everything works perfect on iPad.
There is no info in ibooks author about any special options for HTML widgets.
Check attached image.
Unfortunatelly there are no project like mine in the iBook store.
Hans