lib: add CSS global
This pull request introduces a new global variable, CSS
. It aims to replicate the functionality of The CSS Web API, excluding the supports
, highlight
, or registerProperty
properties.
By the way, I'm aware that I need to expose this global somewhere and add it to eslintrc
, but I'm not sure how to do that.
(Stability: 2 - Stable | No unstable APIs are used in this class, and with it's simplicity, I believe it is stable)