I am learning Ruby on Rails using the textbook called "Agile Web
Development with Rails (4th edition)". I am currently on Chapter 6. I
created the Depot application. Everything matches up with the author's
results except for the alternating purple stripes in the product
listings page. Instead, I end up with white background for all 3
listings. I followed all the author's instructions and rewrote all the
files as necessary.
I am wondering what needs to be changed so that the purple stripes will
be displayed in the browser.