Can I use for both height and width-constrained images?

Question

I have a slideshow sort of thing where images will expand as large as they can, but not exceed the viewport\'s width or height. Basically object-fit: contain.

Answer 1

I think I got it (1/2) is equal to (width/height):

Or with more code:

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As a side note: I also have written a script that automatically calculates the right sizes for parent height/width constrained sizes. See here the parent-fit script.