Jonathan Cutrell from Tuts+ shared a great post about seven CSS units of measurement that you might not know about yet simply because they are rarely used in front-end development. The usual px and em measurement units are totally fine but you will be in great advantage if you know about a couple of these lesser-known units especially when coding a responsive website. The CSS units mentioned in Jonathan’s article are rem, vh, vw, vmin, vmax, ex and ch. rem, vw and vh are supported by IE9+, vmax by IE11+ and vmin is actually “vm” in IE9. ex and ch meanwhile are only supported in newer Google Chrome.

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