Allow :modal pseudo-class

[foxbunny]

🙋 feature request

Support the :modal pseudo-class in @parcel/transformer-css.

🤔 Expected Behavior

When using :modal pseudo-class in CSS, no warnings or error should be emitted.

😯 Current Behavior

The following warning is emitted:

@parcel/transformer-css: Unsupported pseudo class or element: modal

💁 Possible Solution

🔦 Context

I'm using the :modal pseudo to style a dialog element as per the MDN documentation. The warning is a bit distracting as it looks like there's something wrong with the code.

Currently I can work around this using the [open] attribute selector, and it's not a big deal, but would be nice if :modal worked without issues.

💻 Examples

dialog:modal {
  // Styles when dialog is opened as a modal
}