I used tikz for round box, and minipage/verbatim to be used inside the graybox.
I came up with the following command, but it doesn't work. The verbatim inside the minipage doesn't compile.
I also tried with the environment, which also doesn't work. The minipage isn't sit inside the minipage.
- * What's wrong with the LaTeX code? How can I use verbatim environment with minipage in the tikzpicture?
* Could you teach me a better way to implement the grayboxed environment as is shown in the attached picture?
This is the whole code, and I attached the compiled result.