Subscripts and Superscripts
Currently subscripts and superscripts display like this:
Notice that the m3 is not displaying as a superscript. By adding some Custom CSS, we can make it look like this:
Adding Custom CSS
To add Custom CSS to your book, click Appearance and select Custom CSS on the left side menu (not in the themes).
It will provide you a field that looks like this:
Where you will type in the following:
Here’s a version you can copy and paste:
small, sub, sup {font-size: .83em}
sub {vertical-align: sub}
sup {vertical-align: super}
Then click Update Custom CSS and your book’s subscripts and superscripts will work properly.