Hi!
You are missing something :p you need to put background-image: instead of background
there are many main parts to a setting in CSS i.e. border and many subparts to those, i.e. border-left.
You'll learn in time.
In the meantime, check out this link:
http://www.w3schools.com/cssref/pr_background-image.asp[
^]
That should help! and there is loads more on W3 Schools if you get stuck!
If you need anything else let me know :)