lit-next forward-compat: Backport `CSSResultGroup` type.

lit / lit-element

LEGACY REPO. This repository is for maintenance of the legacy LitElement library. The LitElement base class is now part of the Lit library, which is developed in the lit monorepo.

https://lit-element.polymer-project.org

BSD 3-Clause "New" or "Revised" License

4.49k stars 319 forks source link

lit-next forward-compat: Backport `CSSResultGroup` type. #1184

Closed bicknellr closed 3 years ago

bicknellr commented 3 years ago

This PR backports the CSSResultGroup type from ReactiveElement: https://github.com/Polymer/lit-html/blob/664fbfb097712709de19a2a26d3caf89239ac723/packages/reactive-element/src/css-tag.ts#L22