Hey Chris,
the copyright link code works on my machine – I’ll have to wait until I can see your website’s code to make a new suggestion, sorry.
The “scroll to top” button is a sprite – it is an image with two parts, and one or the other is revealed depending on whether the cursor is over it or not. You can of course take the default image and alter it as you like ;)
Sincerely,
Andrii / Satori Studio