How to have a document in which we separate the margin from the body with a rule / line? I want to have a simple TeX rule for this purpose. Also I only want it to start from where I start writing the text and it should end where the text ends. Is there any package to achieve this?
One possible approach with the `mdframed` package:
![Screen Shot 2020-04-26 at 20.15.41.png](/image?hash=cedb38ea6874d00ed5a29488f33ed04244abe3c5c2717592454f78956eb5d8d4)