Custom CSS doesn't work on the frontend in classic themes

[mrleemon]

As reported in this issue:
WordPress/gutenberg#52644

custom CSS (the per-block one, at least) doesn't work on the frontend in classic themes with a theme.json file:
https://fullsiteediting.com/lessons/how-to-use-custom-css-in-theme-json/

Can you add a note indicating this, please?

[carolinan]

Hi, it is mentioned here: https://fullsiteediting.com/lessons/adding-full-site-editing-features-to-classic-themes/#h-6-add-theme-json

[mrleemon]

Sorry, I can't find any mention in that link about the styles.blocks.blockname.css prop not working on the frontend in classic themes.