I LOVE CodePen, awesome Job!! My question is: How you guys keep the CodePen CSS organized?

https://circleci.com/blog/its-the-future/ https://medium.com/@kitze/how-it-actually-feels-to-write-javascript-in-2016-46b5dda17bb5#.y7cmzbvfe

Hii Ben!! I'm currently working with Angular 1 in a company internal product... And I never use React, so I have 3 questions: How can I integrate react with existing projects? What is the best learning path? Because the number of resources are MASSIVE, and I'm lost on where to start and what I need do study. What are the advantages of using React with our projects? Thaaanks a lot, and sorry for my English xD