Re: [csswg-drafts] [css-cascade][css-syntax] New `!revertable` flag to mark a declaration as "can be reverted when IACVT" (#10443) from 一丝 via GitHub on 2026-03-04 (public-css-archive@w3.org from March 2026)

From: 一丝 via GitHub <noreply@w3.org>
Date: Wed, 04 Mar 2026 03:21:31 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-3994994939-1772594489-noreply@w3.org>

> Yep, it is a “gotcha” based on how we serialize things, easily workaroundable as
> 
> ```
> .foo {
>   color: green;
>   & {
>     color: var(--unknow, revert-rule);
>   }
> }
> ```
> 
> It will benefit from a note & example in the spec for sure.

Adding an empty `& {}` also makes `color: green` take effect(Chrome 147.0.7715.0). I think this part of the specification should include some clarification. cc @andruud 

```
data:text/html;charset=UTF-8,<!doctype html>
<style>
.foo {
  color: green;
  & {}
  color: var(--unknow, revert-rule);
}
</style>
<div class="foo">Test</div>
```


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Received on Wednesday, 4 March 2026 03:21:32 UTC