Any examples of how to use the embedded CSS package?

Can someone please share a simple scenario of how to use the embedded CSS package. Let’s say to style a background of a particular heading.

You can add a className to the heading, and in the embed css setting you write the CSS for that classname. You can also override CSS for the antd package for example.

Thanks @icaro
I forgot to add the styling as normal css. I mistakenly added double quotes for color like so “red”. Which makes it an invalid property.

Just a quick thing, If I were to use a specific library and I want to use it on multiple pages then would I have to add the cdn script tag on each page?