Re: [csswg-drafts] [css-values] Ability to address actual physical size (#614)

We can get data to broadly categorise the device type, so we know if we have a mobile phone, a tablet, a laptop or a TV for example, and the viewing distances for each are broadly consistent, discovered by user research rather than a direct measurement at playback time. Obviously there are outliers in terms of people holding devices at different distances, but then that's why we have size customisation options.

Using something like `vh/vw` units is essentially what we already do: that's how the subtitle text height is proportional to the video height. The point here is that it's not necessarily the best way to do it, and that actual sizes could be better.

We might be able to mediate between authoring constraints and display constraints to avoid text being too big by doing something like `font-size: min(12.5vh, 1cm);` for example.

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Received on Tuesday, 15 October 2019 13:36:54 UTC