Is it possible to change only the Y value of background position in CSS?

Question

Is it possible to change only Y value of background position in CSS?

background-position-y is not a valid solution.

Answer 1

No, that's not possible. While background-position allows only one value to be set, this would define x only and make y center. Everything else, like background-position-y is non-standard and therefore only supported in some browsers.