"Snap to grid" function added to vertically centered flex children

Hey man,

I have a vertically centered flex child that needs to -- instead of being perfectly centered -- snap in an upward direction to the closest grid line. This will allow me to have a consistent vertical rhythm between slides in a custom mobile-based experience.

Would you have any desire to add this as a feature? I wonder if it's possible to achieve this with Sass only.

I'm currently trying to solve this problem here.

Thanks! Any input would be awesome.