Reverse key direction

[michaelrafailyk]

On animation logic right now the bottom of the viewport is a -100vh but on CSS logic it is a 100vh. I have a solution how to support existed syntax and new reversed syntax at the same time. But need to decide – should the keys direction be reversed by default to fit CSS standard logic or not?

Existed syntax (scrolling down, element moving up):

<div data-animation="opacity: {-20vh: 1, 0vh: .5, 10vh: 1}"></div>

New reversed syntax (scrolling down, element moving up):

<div data-animation="opacity: {20vh: 1, 0vh: .5, -10vh: 1}"></div>