I can't use navbar properly on codepen

i tried to use navbar.
you can see it here : https://codepen.io/seraj-sherif/pen/PJNxJv
but as you see it doesn’t work well

It’s there, but you used the bootstrap code for a drop-down toggle navbar. Apparently bootstrap 4 makes a distinction between nav-bar and navs?

Try this documentation instead

thanks :heart::heart: