Interactions with viewport

[travisleithead]

This issue was migrated from MicrosoftEdge/MSEdgeExplainers#137

[Editor's note: this issue may be out of date given it's age, but I wanted to be sure the folks working on the latest version of this feature made the call.]

@kenchris opened this issue on 2019-11-08
(in reference to: https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/Foldables/explainer.md)

Especially given we have viewport units like vh (viewport height) and vw (viewport width) as well as the Visual Viewport API:

https://wicg.github.io/visual-viewport/

[bokand]

Is this specific to the segments API? IMHO, viewport units (vh/vw as well as the new svh/lvh/dvh are related to layout so they shouldn't interact in any way with the non-segmentation values of visualViewport