How to make a freehand panel on the mobile version of the site?

Question

Web development

I do not know how else to formulate the question, some stupid. Here is an example jakiestfu.github.io/Snap.js/demo/apps/default.html
Is there any analogue with more features?
An effect for a mobile site to push all sorts of panels by hand.

Answer 1

Trunk

Answer 2

Here is something similar www.onextrapixel.com/examples/touch-swipe/demo3.php