Hi, I’m trying to add “back to top” button which fadein while scrolling down and fadeout on the top of the page in my codepen project.
I read for hours about it and still can’t figure it out. I understand that I have to use Jquery and JS and I understant the general idea behind this, but I don’t know where to put each line. Where do I need to write the JS? Should I plant a Jquery?
Please, some advice