I'm trying to create an environment able to understand when it's on a single/two columns layout and to span over multiple pages or columns having different style for the two cases. I would want to obtain something like this example:
mdframed package but they seem not to be quite configurable for my needs and seem to have problems with 2-columns layout.
Can you advise me a quite configurable package which can do what i need (see the attachment) or if not, is there a command which i can use to understand when i reached the end of page or column?
To solve my problem I'm trying to use TikZ nodes to create the frame, and i would understand when it's time to go on the next page/column to create a new node and put there the following text, but i don't know how to create the partially dashed line on corners, and how to detect the end of page or column. Any suggestion?