Hi, I've had a quick search but can't find a wish-list for this (surely it must have been requested?)..
I'd really like to be able to see the CSS I add as custom code in the editor (or at least in preview) – there are many reasons this would be useful but particularly for CSS pseudo classes. I tend to use them a lot and I know it's a design challenge for webflow to add pseudo class functionality to the editor. If we could add them as custom code and could see the output in the editor, this would be a very helpful solution (I'd almost not need pseudo class support in the editor though it would be cool of course).