Scroll down/up on click buttons to navigate page

I’m currently developing a WordPress website with Elementor Pro. My client is asking for up and down buttons to navigate the homepage. I’m guessing that I need to use javascript to do this but I have almost no javascript knowledge. Can someone please help me about this? I can embed the javascript in HTML widget. My buttons’ IDs are #button-up and #button-down. There’re 5 sections in the page and all sections’ height is 100vh. Thanks in advance! I’ve scroll snap activated in the page.

Thanks in advance!

I tried various javascript codes but couldn’t make it work.