Sticky navigation not working and font awesome not showing!

HTML-CSS
#1

Im having problems with position sticky. On destop versions its not working, idk why. And my font awesome is not showing. Help please!
https://codepen.io/bego96/pen/zjMWeZ

#2

You forgot a hashtag # before your body element. your html elements and CSC is not well linked

#3

I think all the href link instructions you have on the header are not needed in codepen (except for the Google Fonts). Try removing them and see what happens.
Also, I believe that for Font Awesome icons to work you need to include the kit script within the head section in the html.

Would that help?

#4

  1. That is not how position: sticky works. If you move the nav out of and below the header element and then set top: 0; on nav you can see how it works.

  2. I don’t see you linking to font-awesome. Click the Settings button, go to the CSS tab and type font awesome, click the link to add it to the page.

#5