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Question

What's the purpose of position: relative in css

Answer 1

https://www.w3schools.com/css/css_positioning.asp#:~:text=An%20element%20with%20position%3A%20fixed,would%20normally%20have%20been%20located.
See this link

Answer 2

It will mostly use when you have to change the refrence point for an element with position absolute.