How to make a css animation?

There is a website:
In the How it works section there is a diagram with animation, moving point. How is this animation? I would be grateful for links to guides or similar for a simple example. In what direction to dig?
June 8th 19 at 16:55
1 answer
June 8th 19 at 16:57
With pure CSS to do this for too long. It is easier to take a bunch of SVG+JS. Draw for each point path - the path on which it moves, and then moving it in JS that way. There are many ready-made solutions, for example here's a simple demo in pure JS, and libraries like anime.js there is such a function.

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