I've been playing around with some custom HTML as described here. This is working alright but I'm trying to apply my styling using custom.css as described here. Although I can apply my custom CSS to the entire site, it does not target the elements inside the HTML field.
I've tried using targeting the HTML elements with CSS classes and this does not work (CSS is also not showing in dev tools). When I was looking if the elements could be targeted at all with
* { border: solid 3px green; }
it targeted all my elements except the elements inside my custom HTML.
So my question is: is it possible to combine custom HTML with the custom.css file?