Honestly, if you want to make a difference in Africa, getting $1M is the least of your problems. If you are serious about that dream, talk with people who are

Honestly, if you want to make a difference in Africa, getting $1M is the least of your problems. If you are serious about that dream, talk with people who are or has been working in Africa, learn what are the real issues and figure out how you would overcome them. Learning CSS layouting won't move you an inch toward that dream. On the other hand, if you want to make money as a programmer, learn to program. It has nothing to do with particular techniques - during the next 15 years, you will learn a lot different ones, which themselves will become irrelevant, but your generic programming ability won't.