I am trying to get the overflow scrolling on a nested div. The following snipped works because of the height: calc(100vh - 195px). I was wondering if there is a way to get the scroll withouth this calc:

I want to make a slider between two sides of my website so users can adjust the sizes of the two sides. I want the slider to be like a narrow line with a “bubble” in the center for it to be easily draggable, but the bubble won’t overflow the line, because it is div inside the div