[pdrummond]

I've used Downshift before and while I like the idea, what I am suggesting is broader in scope. A set of primitives such as Overlay, Rectangle, Circle, List, Row, Column, etc that still allow you to apply styling but overall they sit at a lower level of abstraction than ready-made components, even ones based on something like Downshift.

The more I think about this the more I feel like I'm describing exactly how "Qt Quick"[1] works, the declarative user interface markup language that is part of the Qt Framework. Of course, it's not a web technology but it would be interesting to see a web-based framework/lib based around some (if not all) of the ideas found in QML.

[1] http://doc.qt.io/qt-5/qml-tutorial1.html

[simplify]

It sounds like you're describing flutter. But that's not quite a web technology either.