Here is an updated version of my tests. Support for mouse wheel and some support for touch devices were added.
Tested on vertical supersite, so the code moved to the site head.
Testing on the tablet has really been a pain.
As you can see in the example there no longer needs to be a slider and track, and the parameters may be left empty. Please ask if something needs to be explained.
See example online here.
Maybe someone has a chance to test on other mobile devices and tell if there are problems?
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