Need to decide on the box-sizing policy

[gliechtenstein]

Some of the dimensions are not consistent on iOS and Android.

Basically the same problem as CSS box-sizing property.

For example when you set width: 100%, on Android it actually sets the width to full 100%, which means it will go out of bounds if there's a padding involved, but on iOS the OS makes sure the elements don't go out of bound, so setting width: 100% is almost like saying max-width: 100%.

Currently a way around this problem is to not use width: 100% and rely on autosizing.

But this does need to be addressed and we need to come up with a consistent policy.