The question is regarding the GSAP 3. How can I interpolate between two values using gsap properties such as easing, duration, delay etc?… And I don't need actual target object to animate. I've embedded Codepen example of how I did this before, with TweenMax. But when I use gsap 3 syntax JS console generates error telling that target is undefined.   I assume that  .interpolate() utility may come in handy here. But I cannot understand how to apply it in this case. Please, help