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A rubygem of Material Design for Bootstrap 4
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Material-sass Gem Version

material-sass is a rubygems version of Material Design for Bootstrap 4

Offical repo



Rails 5.1+ The Rails JavaScript helpers has been rewritten in a new gem called rails-ujs and they use vanilla JavaScript, so jQuery is not a dependency of Rails anymore. Since bootstrap relies on it, install it with bin/yarn add jquery or via gem 'jquery-rails' and add //= require jquery to application.js.

NOTE: Ensure that the sass-rails gem is presented in your Gemfile.


Add this line to your application's Gemfile:

gem 'bootstrap',     '4.1.1'
gem 'material-sass', '4.1.1'

And then run the bundler and restart your server to make the files available through the pipeline:

$ bundle install

Or install it yourself as:

$ gem install material-sass


a. Sass

Import Materialize styles in app/assets/stylesheets/application.scss:

@import "material";
//ps: no need to import 'bootstrap'

NOTE: If you have just generated a new Rails application, it may come with a .css file instead. If this file exists, it will be served instead of Sass, so remove it.

$ rm app/assets/stylesheets/application.css

b. JavaScript

Require Material javascripts in app/assets/javascripts/application.js:

//= require jquery
//= require popper
//= require bootstrap
//= require material

c. Icons

Include this line in the portion of your HTML code

<link href="" rel="stylesheet">

or import this line in your application.scss

@import "";

or install this gem for offline icons

gem 'material_icons'

see docs


note: Any changes or Pull Request regarding material assets should be made in official material repo.

  1. Fork it ( )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request
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