[csswg-drafts] About special elements propagation (#13435)

DevSDK has just created a new issue for https://github.com/w3c/csswg-drafts:

== About special elements propagation ==
> The CSS Backgrounds specification explicitly describes about the special elements [1]. I think web-devs will expect this property to be propagated (applied) to an animated background image for the root element.
> 
> > For documents whose root element is an HTML HTML element or an XHTML html element [HTML]: if the computed value of background-image on the root element is none and its background-color is transparent, user agents must instead propagate the computed values of the background properties from that element’s first HTML BODY or XHTML body child element.
> 
> Since the specification points specific css properties, we should consider adding this property to this section or the appropriate section explicitly.
> 
> Aside, due to [2], we may need to think about this should be inherited property or not.
> 
> [1] https://drafts.csswg.org/css-backgrounds-3/#special-backgrounds
> 
> [2] https://www.w3.org/TR/design-principles/#example-58897411

*Originally posted by @DevSDK in https://github.com/webplatformco/project-image-animation/issues/4*

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/13435 using your GitHub account


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Received on Tuesday, 3 February 2026 08:45:40 UTC