@argyleink I wonder if one day we can make something like `sibling-count()` and `sibling-index()` but for rows and columns...

You could use row-index() to give each row an alternating of hue-cycling background-color .

But you could do more interesting things like .flex-container:has( > *:row-index(2)) to detect if the flex container itself currently has any wrapping elements.

Or animate the elements enter/exit animations to the nearest side using row/column-index(), calc(), and round().