Provide any workaround for ":where" selector

[anantakrishna]

Currently global coverage is no more than 90%: caniuse.com/?search=where

The main feature of :where is to achieve 0 specificity which can't be emulated with plain CSS (seemingly). However, maybe emulating :where with increased specificity still could be beneficial? At least there may be a chance of proper styling in the old browsers instead of completely unstyled HTML?

Examples:

• Typography plugin won't work in Electron iframe in Tailwind CSS v3.0+ tailwindlabs/tailwindcss#8001
• Usage of cutting-edge :where selector broken in old browsers facebook/docusaurus#7617

postcss-preset-env also does not provide any workaround for this selector: csstools/postcss-plugins#509

Created from discussion parcel-bundler/parcel#8262

[devongovett]

What would you expect it to compile to? I can't think of another way to lower specificity...