Html,Css,Js,Botton and list elements

1

Hi,I have a question.
I want to make a button on my site, so that botton should runs the page down to the specified place.
For example like on this page https://codepen.io/freeCodeCamp/full/YqLyXB
like three botton elements on Violet background, in the top-right part of the page.

Please, halp me.

2

Are you using some javascript library? like jquery or something else…

3

Yes, but I am a junior wed desiner, and i don’t know how to do this.