Notification styling missing

Hi, I've followed the documentation for the Notification component, and it's working apart from I just get the text with styling: no colour background, etc.
I guess I need a css file and a reference to it on MainLayout.razor, but where is that from?

Incidentally - what's with the documentation just having images that are really hard to read due to the small text? How about something that we could copy and paste?

You've missed our Blazor components getting started page?

Erm, yes I did!

That's much better, and my apologies!

Many thanks for your very swift response.