I am trying to do this effect:   ✅ the circle stretches when I scroll down  ✅ the circle narrows when I scroll up ⁉️ and finally I want the circle to return to its initial position when there is no scroll   Sure it's easy but I can't figure out how to do that.   Also, I'd like to know if it's possible to give a delay effect at the beginning of the animation. Some kind of inertia.   Any help will be welcome.   Thanks in advance,   &#