What are these boxes of text called that interrupt the flow of text with some aside type comment?
They're usually related to the main body of text, are embedded somewhere nearby in their placement on the page to text holding contextual significance. They're usually a side story, aside, backstory, something attention grabbing like the warning example above. It's usually something a little more beefier than an endnote.
- What are these boxes called that publishers often format into documents?
- How are these represented in the ePub format?