For some awesome Rails tutorials stick with GoRails.com or DriftingRuby and Railscasts.
I'm glad you figured it out though. Yea his Rails tutorials are hard to follow and he doesn't really explain why he does things. I think he expects people to just follow along blindly or what. He's a really good designer though.
Is that the only css that doesn't work, the one referring to the font
Proxima Nova? I believe that is a Typekit.com font and needs to be explicitly added, it doesn't come with Rails or Bootstrap.