Maybe don't use custom properties in shorthand properties | CSS-Tricks

Maybe don't use custom properties in shorthand properties | CSS-Tricks

Manuel Matuzović: That an invalid custom property invalidates the entire declaration isn’t surprising, but I didn’t consider it until I saw one of my declarations break. I guess it’s just good to know that, especially if you’re working a lot with custom properties. This easily qualifies as a “gotcha” in CSS and is a good reminder that the cascade doesn’t know everything all at the same time. If a custom property is invalid, the cascade won’t ig…