See the MDN examples: https://developer.mozilla.org/en-US/docs/Web/CSS/if https://developer.mozilla.org/en-US/docs/Web/CSS/if I for one would much rather use

See the MDN examples: https://developer.mozilla.org/en-US/docs/Web/CSS/if https://developer.mozilla.org/en-US/docs/Web/CSS/if I for one would much rather use local conditionals than do the logical equivalent through conditionally set CSS variables. It is much more readable and extendable than several layers of abstraction (design token vars -> semantic vars -> theme vars potentially complexed by media/container queries -> element styles). Of course I wouldn’t replace all of that, but if() would certainly make many things easier to grok for the next guy. Just don’t overuse it.