How to make a sticky navbar in web?

Question

I need to make a sticky navbar in web. Is there anyone who will help me.

Answer 1

Demo
https://code.sololearn.com/W80O299tZX8Z/?ref=app
QUOTE
An element with position: sticky; is positioned based on the user's scroll position.
A sticky element toggles between relative and fixed, depending on the scroll position. It is positioned relative until a given offset position is met in the viewport - then it "sticks" in place (like position:fixed).
Note: Internet Explorer, Edge 15 and earlier versions do not support sticky positioning. Safari requires a -webkit- prefix (see example below). You must also specify at least one of top, right, bottom or left for sticky positioning to work.
Reference
https://www.w3schools.com/howto/howto_css_sticky_element.asp