The main intention of this chapter, was to brief you on how to develop and design a simple Rails application without the help of any CSS frontend frameworks. We manually styled the application by creating an external CSS file styles.css and importing it into the application using another CSS file application.css. We also discussed the complexities that a novice web designer might face on directly styling the application.

In the next chapter, we will get our hands dirty with Bootstrap. We will learn what it is, and how it can help to design a Rails application quickly. We will also learn how to integrate Bootstrap with the Rails application.