Talk:TemplateStyles' src attribute must not be empty message?

Some templates have the red text which reads "TemplateStyles' src attribute must not be empty." at the above! It needs sanitized CSS! Thanks --Chace1204 July 8 2023 3:37 PM (UTC)

Idk what that is. --Charlie Fiddlesticks (talk) 21:04, 8 July 2023 (UTC)