SuperScript, not able to change the size

I have the following in the Text Editor, with 10 and 8 set to 16px and the th set to 10px. But when you see it on the page, it shows incorrectly.
Finance charges of 1.5% monthly will accrue for any unpaid balance starting the tenth (10th) day after notification of completion of repairs.
A $50/day storage fee will be assessed starting the eighth (8th) day after notification of completion of service for vehicles with unpaid invoices remaining in Zakira’s care.

Picture of how it shows:

I cant figure out how to change it?

I figured this out. I had to add the Style to the Text Editor