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by daniel_sim 5082 days ago
My approach is to leave it to the device manufacturer/user and only use % based font sizing. CSS wise, for layout I then rely on % for horizontal spacing/positioning and em's for the verticals, which act as a kind of "em = line" system. Even though an em is rarely a line is a baseline sense, it makes cross-device design a lot more painless leaving the base unit to the device itself.