Is there a way to make an embedded page appear in a code box?

I have a page [[prompt]] that contains the content “blah blah blah.” On [[another page]], I have embedded that content ({{embed [[prompt]]}}). I would like it so that when someone views the [[another page]], they can easily copy the embedded content ({{embed [[prompt]]}}). The codemirror format is perfect for this, but if I include this content with the “<src” command in the [[another page]], it doesn’t render:

{{embed [[prompt]]}}

I would like to copy the text “blah blah blah” instead. Is there a way to achieve what I want to do? Perhaps with custom CSS?