I’m looking for a sortable drag-and-drop tutorial using only vanilla JavaScript and no HTML5. The other questions I’ve seen link to outdated sites

I’m working within a very limited LMS that does not allow the HTML5 draggable property, and also does not allow JQuery. It’s nearly impossible to find a tutorial that doesn’t use draggable, and I want to learn the technique so that I can debug more effectively. The best answer will have two columns where an element on the left is paired with a specific drop-zone on the right.

I’m an intermediate vanilla JS user, if that’s relevant. I can upload a single JS file, not multiples.

I’ve spent hours looking for code that doesn’t use HTML5. The duplicate questions on Stack Exchange are all pretty old and refer to outdated links, which is why I’m asking again. Thanks in advance!