title: How can I change or customize the alert colors bootstrap 4 and Ruby on Rails 5
body: <p>I'm using bootstrap gem 4.0.0.beta2.1, Rails 5.1.4 and standard bootstrap alerts (class: "alert alert-info"). They are nice, but don't fit to my styling. I would like to have the white background for example. How can I customize it? Is there any way I can change Bootstrap4 variables?</p>