Hello ! I am 13 years old… (yes, yes…) [...]
Hello. My advice is to practice, practice and practice again… And now to the point, go to http://codecanyon.net/category/css and browse a well-selling items. Now think carefully if you are able to do something better, something different and just do it. The hardest thing will not be lack in your skills, but a good idea and believe me you will learn a lot making a new item! Even if your item will be rejected by the reviewer. Do not give up and try again. Good luck!