Re: [csswg-drafts] [mediaqueries] length units in video-* media features. (#5044)

`px` has both the [original (angle subtended) definition and a physical (1/96 inch)](https://drafts.csswg.org/css-values-4/#absolute-lengths) definition.

The term [anchored](https://drafts.csswg.org/css-values-4/#anchor-unit) also explains which definition to use n which circumstance.

However, it only defines two options and this specification uses a third, which should be added to V&U 4:

-    by relating the physical units to their physical measurements, or
-    by relating the pixel unit to the reference pixel. 

add
-   by relating the pixel unit to a physical device pixel, regardless of size

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Received on Tuesday, 5 May 2020 12:45:50 UTC