How to lay out a section (animation)?

Question

css

Please tell me how to complete this section. I saw something similar somewhere but can't find it now. Maybe there is a plugin for such sections? Can this be done without JS?
How to make the lines move apart when the big black circle appears? and how to make lines?

Answer 1

elementary without js
First, you make up a small icon ("Big choice" and "+"), when you hover transition + appearance (opacity / display) of a large block on it, and there are no problems.