how to move a position of one div element which is inside another div element?

Answer 1

by adding margin to the inner div or adding padding to the outer div

Answer 2

resize the inner div or make bigger border of the outer to make it looks like iphone border

Answer 3

i m working in it-https://code.sololearn.com/WMZVio7exS03/?ref=app
you will see at the end of this page i m making and iphone but see the coding i tried to add margin-top in the inner div but its not moving, what to do??