Online is great for beginners, opponents won't be available to your shaky hand, nervouse moving, smiles and mimics.. so yeah it is good for you to start behind the screen. Try to learn about poker, rules, you can choose a lot of games, i recommend you PLO, much more dynamical then NLH. And you PLO, you fill learn to think about the hand and game while you are playing. 1st try to play freerolls, see how it is going. If you want to play for the money, i recommend you to try Spin'n'go, only 3 players, and small tour but without rebuys, you can try 256players 1$ buy-in satellite for 10th anniversary sunday milion; idk check some online poker tests about poker rules and stuff.
I prefer PLO cash game.