how can i fix the nav menu while scrolling the page ?

Answer 1

position:fixed;

Answer 2

nav { position:fixed }

Answer 3

make the position of nav fixed.

Answer 4

Position:fixed;

Answer 5

Position: fixed. But keep in mind that all anchor links (e.g. /mypage.html#about_us) may be covered by the fixed navigation if you place it at the top of the page. This problem has to be solved by JavaScript.