I have a document that should contain a bordered box with a paragraph of explanatory text. The box's width should be a percentage of that of the page's body.
I don't want to make the box a fixed width, because I will be making the document in two page sizes. I hope I'll only need to change the documentclass property, and to that end I hope it's possible to make the box width proportional to the page (or body) so that its width will make sense at both sizes.
I tried using
\framebox but I don't seem to be understanding it properly -- I can't get the text in the framebox to wrap.
I suppose I could make a one-celled table, but it seems like I'm missing a more elegant solution.