Thanks! I will learn a lot from that.
It’s pretty self explanatory. If the body id is ‘home’ then the menu unordered list, list item, anchor link with a class of ‘home’ should have a blue background. If the body id is ‘pizza’ etc.
No sarcasm intended. I actually did learn a lot from that.
I also found and fixed an error you had in there. ;)
(you had a #nav in there. I changed it to #menu)