A fork is a copy. You can make a copy of any Codebit you see. After you do that the copy will be in your profile and you will be able to work on the code and change it as you wish without affecting the original Codebit.
To make a fork of a Codebit:
- Find a Codebit in someone else's profile, then click on it.
- Click on the EDIT CODE button.
- After you make a change to the code you will see a Save button
- Click on the Save button to save the changes to your own profile.