[vagrantJin]

Right.

Thanks for this but

> I don't want play a detective with css properties ever, when there is a proper mathematical model for coordinate relations.

Designers and UI devs would probably rather just write custom shaders on canvas if they have that level mathematical prowess. For most, offloading that cognitive load to an abstraction like CSS is worth it. Let the browser do the math. Playing detective then seems like a woefully arbitrary issue to have.

Those who are fine with current CSS could then continue to craft wands and potions and everyone'd be happy.

I believe it's called the dark arts.