Editor: 'content' CSS field missing on ul/li/div with :before pseudo-selector

[lexoyo]

Summary

When selecting a :before pseudo-selector on a ul, li or div element in the editor, the content CSS property field does not appear in the style panel — even though content is required to render anything with :before.

Steps to reproduce

1. Open the editor (reported on v3.silex.me / canary.silex.me)
2. Add or select a ul, li or div element
3. Try to add a :before pseudo-selector and a content property
4. Notice that the content input field is not shown

Expected

The content field should be available in the style panel whenever the current selector includes a ::before / ::after pseudo-element — regardless of the underlying tag (ul, li, div, etc.).

Actual

The content field is missing for ul, li and div (and possibly other tags) — so :before cannot be made visible from the UI.

Context

• Originally reported on the forum by @ceubri on 2026-02-04: https://community.silex.me/d/192
• A previous pass thought this was fixed (comment on 2026-03-11), but @ceubri confirmed on 2026-04-20 that the bug is still present when combining :before with ul, li or div.
• Tested on the production editor.

Screenshots are available in the forum thread (posts #1 and #6).

cc @lexoyo @ceubri

[lexoyo]

c'est fix @ceubri non?
je ne reproduis plus sur canary

[ceubri]

toujours là le bug :

[lexoyo]

Oh
C'est sur quel navigateur ?

[ceubri]

firefox, mais c'est identique sur chrome

• ça le fait également avec un H1, p...