Is it possible to remove or hide the scroll bar on this profile? My pet

Is there also a way to stop it from jumping when you hover over the text box?

Also, sorry if this has been answered somewhere, I'm in a bit of a rush right now and was hoping to fix it before I went out.

You can hide the scrollbar by covering it with an image in a separate div and using a z-index to make sure it's above the text box/treasure chest.

I don't see any jumping when I hover over the text box, so I can't help you with that.