Re: [csswg-drafts] [css-fonts] Proposal to extend CSS font-optical-sizing (#4430)

> What's wrong with using CSS px (aka Device Independent Pixels, dips) as that unit?
> 1 CSS px = 1/96th of 1in, more or less, but that's as good as it gets.

According to what Miles wrote above, 1 CSS px does _not_  equal 1 inch. Rather, 1 CSS inch = 96 px, and px ‘are not defined to have any physical length’. So from my perspective that is not as good as it gets, because a typographic point that is 1/72 of a standard physical inch is an absolute size that type designers can target. If the conversion from that to CSS or other non-physical units is approximate and sometimes lossy, that's something I recognise is beyond my control as a type designer. But please don't push that uncertainty down to the foundation level where we're trying to make fine optical size adjustments for text sizes.

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Received on Sunday, 24 May 2020 00:04:19 UTC