Can anybody help me in understanding drag and drop please.

Answer 1

Hello, Areeb 3331 !
For your question were selected some sites
https://developer.mozilla.org/docs/Web/Guide/HTML/Drag_and_drop

https://www.w3schools.com/html/html5_draganddrop.asp

Answer 2

this will help you a lot
https://code.sololearn.com/Wdhhd3yG5Z7l/?ref=app
https://www.sololearn.com/learn/HTML/2214/