[Misbehavior of draggable knob while in fixed positioned context]

It's working like a charm !

Thank you.

[Misbehavior of draggable knob while in fixed positioned context]

Thank you for the fast reply.

[Misbehavior of draggable knob while in fixed positioned context]

Hi everyone,

 

I'm trying to show a draggable circle inside a popin (fixed positionning). But as soon as I scroll down, it seems like the circle positions are translated (not visually). As a result, I can't drag the knob anymore.
I've made a simple pen describing my problem.

 

See the Pen eYYwgWK by lyes-moitrankill (@lyes-moitrankill) on CodePen

 

Is there a simple way to make this work ?