The `background` debacle — a case study on web compatibility

[utterances-bot]

The background debacle — a case study on web compatibility

A case study on web compatibility featuring the serialization of the background CSS shorthand property. Learn about the CSS standards process and web platform tests (WPTs) along the way.

https://twilco.github.io/posts/2020/02/03/the-background-webcompat-debacle.html

[epris]

What's the difference between bg-layer and final-bg-layer? I haven't been able to find a definition in the recommendations