I am currently working on a project where I am trying to replicate the vertical scrollable bar and containers seen on this specific website:
https://i.sstatic.net/ZsvuO.png
Essentially, my website consists of various divs and I would like to implement a scrolling feature. This means creating a vertical scroll bar that shows which section the user is in, along with smooth transitions between sections when scrolling.
Despite my efforts in researching, I have been unable to find the relevant information due to not knowing the correct terminologies for this feature.
How can I achieve this functionality?
I am not seeking code, just guidance on the proper research and experimentation I should undertake to achieve this. Thank you.