Your daily frequent11y newsletter, brought to you by @ChrisBAshton:

Accessible Fonts: Please, STOP Using PX For Screen!

• A very ranty article that nevertheless explains quite well the reasons for using em (rather than px) for your font sizes, media queries, margins and padding. It dispels the myth that the ‘default’ font size is always 16px (the author’s default is 20px). rem is argued against as theme changes have to be applied in more places. pt, mm, cm and other ‘real-world’ metrics have their place only in your print styles.

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