Masa331 blogging


Hi, i'm Premysl Donat and this is my blog about IT and my life in generall. I work at UOL and in my free time.. well, look at my Github.

Have a good one!


Did you know that Twitter Bootstrap 4 will be in Sass and not LESS anymore? That means we can directly use it inside Rails projects with official bootstrap gem.

No need to use bootstrap-sass or even LESS version twitter-bootstrap-rails.

How to integrate into Rails

It’s super easy. Barely needs a post but anyways:


gem 'bootstrap', '>=4.0.0.alpha3'


 * This is a manifest file that'll be compiled into application.css, which will include all the files
 * listed below.
 * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
 * or vendor/assets/stylesheets of plugins, if any, can be referenced here using a relative path.
 * You're free to add application-wide styles to this file and they'll appear at the top of the
 * compiled file, but it's generally better to create a new file per style scope.

@import "variables";
@import "bootstrap";
@import "my_styles";

Note that we don’t use Sprockets requires anymore, just normal Sass imports. But practically it’s similar. variables.css.scss and my_styles.css.scss are just another files in same folder as application.css.scss.

And that’s really all! :) Now head to the Bootstrap 4 docs to see what other things are new in Bootstrap.