The power we’ve just gained in using Angular is great, but our customer details view isn’t that useful. It’s now time to focus again on Bootstrap and use its grid in order to design a better details view. Grid-based design, and Bootstrap’s implementation of it, will unlock your inner web designer and give you the ability to mock up, design, and implement a complex user interface without writing any CSS.
https://github.com/rails/webpacker#use-html-templates-with-typescript-and-angular
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
https://angular.io/docs/ts/latest/api/router/index/Router-class.html
https://angular.io/docs/ts/latest/api/router/index/ActivatedRoute-interface.html
https://angular.io/docs/ts/latest/guide/lifecycle-hooks.html