Top of Page code

Hello, excited to see this new feature. 

I'd really like a link or button that sends users back to the top of the page. I used AI to write the code, as suggested in the instructions in 'An Introduction to Rise Code Block'.

When I paste the code into the block, the 'Top of Page' link/button appears but when I click on it, nothing happens. 

I'll attach a text doc with the code - any help would be much appreciated. thank you.