There are some important facts you need to know before performing CPR on a child.

In the interest of legalities, no one should perform CPR unless they've been formally trained or they're liable for any excessive/unwarranted damage caused (some damage will be caused regardless). I feel like this article should be deleted as it may give people the idea that they CAN do something because they've read a very basic outline of what to do. There's no shame in not knowing how to do CPR, but it's a traumatising experience and shouldn't be undertaken by just anyone.