Building my first rails app was awesome. It helped me put together everything I had learned throughout the rails course. I especially became comfortable using
form_for helper and
fields_for helper for the complex form I built, and learned how to customize the devise gem.
When I started building my own Sinatra web app, I didn’t bother thinking about the design of the webpage. It did not seem important. Then when I saw other Sinatra web apps, I decided I must add CSS to my own app because I saw what a difference it made.