.nav problem


I type the .nav a, but it doesn't work, I do as the instructions say, but for some weird reason it doesn't appear on webpage at the right. Please help, When I click Save & Submit it says that I haven't bolded it but I have typed font-weight: bold;


Try reloading/refreshing your web page.

If that doesn't work, please copy/paste your code here so I can test it.