spoiler parameters | WordPress.org

Good morning, I’m using the SPOILER function.
I found the documentation here:

https://getshortcodes.com/docs/accordion/

The “fancy” style works, but others don’t. From Wood on down he always performs the same style.

Then, another thing, I wanted to know how I can enlarge the FONT of the writing.

Thank you

The page I need help with: [log in to see the link]