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468060 (123) [Avatar] Offline
#1
p.315

Almost a quarter of browsers don't support var, so code using it will break badly. Why do you use this rather than SASS variables, which are supported by all browsers?
Keith J Grant (36) [Avatar] Offline
#2
I made a note of this limitation immediately following listing 12.2. But you’re right, I will call this out more clearly.