I'm making an animation for a computer image with GSAP

When it works, it looks like this

But once I change the width of the window, everything in the layout is totally responsive but the animation.

This is when it doesn't work

Below is a simple example
https://codepen.io/littlecodingloser/pen/bGopwBv
How to make the animation responsive?

12/8 update

I add some method into start and end properties, and the problem is solved!