How do i do this text box?

I need to add a large amount of text to a page and it looks terrible.
What i want to do is install a scrolling text box somehow so it takes up a small part of the page and the reader can scroll through the text.
Like this:

https://www.abpinspections.com.au/building-inspections-adelaide/inspection-agreement.html

Is this done with a plugin or widget or is it in built with standard WordPress?

Thanks for nay advice. Struggling here.

Wayne