Render HTML code blocks (or render html files)

Hi there.

I'd love it if html code blocks could be rendered, then "locked" so that on refresh it loaded in it's rendered state.

Here's an example of what I'm talking about. (Hope you don't mind posting a vid).

https://www.loom.com/share/bd10757b41b54d7cbb97679ac71b829c

Thanks! Your app is amazing. Keep up the great work!