Font override error and a small request?

[sidatube]

I overwrote the font with "Arial" but the area jumps back to the old font.

When I alt + f twice to reset, it returned to normal, but when I entered a certain item and then returned, the old font jumped back.

As for a small request ?

How to make the original text have small letters on top like the image below (to make it easier to read)?

Could anyone help me?