How to connect two div dynamically by connecting line ?

Hii all;

I am trying to do that connect two div dynamically by following way :-

https://1drv.ms/u/s!AvHs5oVtdBkbtgZIl5e0wX0H_8Yc

In this video i define that how i am trying to do;please watch it.

I tried a lot to do this by visiting many site but not get appropriate result as i want; so if you have any idea or technique please share with me.

I want to do it manually; because i have lots of customize thing to do; so please suggest me any idea or hints to do this.

I already visitied many site like :-

https://jsplumbtoolkit.com/

www.raphel.js

and many more; but not getting how to do that.

Thanks

Regards:

SK.