Ok, i’m kinda lost.
I started here in FCC 1 week ago and i’m currently doing the portfolio project. To add a navbar i tried using the resources of this site: https://www.w3schools.com/bootstrap/bootstrap_navbar.asp in my pen code and it didn’t work.
Then, i tried using these: http://v4-alpha.getbootstrap.com/components/navbar/#nav which is a lot more complicated to me to understand but worked well. I noticed that codepen uses bootstrap v4 , i’m not sure if i should start learning with the v3 and, in the future, jump to v4 or if i should start learning with the newest version.