Bootstrap for Sass

bootstrap-sass is a Sass-powered version of Bootstrap, ready to drop right into your Sass powered applications.

Installation

Please see the appropriate guide for your environment of choice:

a. Ruby on Rails

bootstrap-sass is easy to drop into Rails with the asset pipeline.

In your Gemfile you need to add the bootstrap-sass gem, and ensure that the sass-rails gem is present - it is added to new Rails applications by default.

gem 'bootstrap-sass', '~> 3.2.0'
gem 'sass-rails', '>= 3.2'

It is also recommended to use Autoprefixer with Bootstrap to add browser vendor prefixes automatically. Simply add the gem:

gem 'autoprefixer-rails'

bundle install and restart your server to make the files available through the pipeline.

In app/assets/application.css.sass:

@import "bootstrap-sprockets"
@import "bootstrap"

Do not use //= require in Sass or your other stylesheets will not be able to access the Bootstrap mixins or variables.

In app/assets/application.js:

//= require jquery
//= require bootstrap-sprockets

Rails 3.2.x

Rails 3.2 is no longer maintained for bugfixes, and you should upgrade as soon as possible.

Starting with bootstrap-sass v3.1.1.1, due to the structural changes from upstream you will need these backported asset pipeline gems on Rails 3.2. There is more on why this is necessary in twbs/bootstrap-sass#523 and twbs/bootstrap-sass#578.

gem 'sprockets-rails', '=2.0.0.backport1'
gem 'sprockets', '=2.2.2.backport2'
gem 'sass-rails', github: 'guilleiguaran/sass-rails', branch: 'backport'

b. Compass without Rails

Install the gem

gem install bootstrap-sass

If you have an existing Compass project:

# config.rb:
require 'bootstrap-sass'

$ bundle exec compass install bootstrap

If you are creating a new Compass project, you can generate it with bootstrap-sass support:

$ bundle exec compass create my-new-project -r bootstrap-sass --using bootstrap

or, alternatively, if you're not using a Gemfile for your dependencies:

$ compass create my-new-project -r bootstrap-sass --using bootstrap

This will create a new Compass project with the following files in it:

• styles.sass - main project Sass file, imports Bootstrap and variables.
• _bootstrap-variables.sass - all of Bootstrap variables, override them here.

Some bootstrap-sass mixins may conflict with the Compass ones. If this happens, change the import order so that Compass mixins are loaded later.

c. Bower

Using bootstrap-sass as a Bower package is still being tested. It is compatible with node-sass 0.8.3+. You can install it with:

$ bower install bootstrap-sass-official

bootstrap-sass is taken so make sure you use the command above.

Sass, JS, and all other assets are located at assets.

By default, bower.json main field list only the main bootstrap.scss and all the static assets (fonts and JS). This is compatible by default with asset managers such as wiredep.

Node.js Mincer

If you use mincer with node-sass, import bootstrap into like so:

In application.css.ejs.scss (NB .css.ejs.css):

// Import mincer asset paths helper integration
@import "bootstrap-mincer";
@import "bootstrap";

In application.js:

//= require bootstrap-sprockets

See also this example manifest.js for mincer.

Configuration

Sass

By default all of Bootstrap is imported.

You can also import components explicitly. To start with a full list of modules copy bootstrap.scss file into your assets as bootstrap-custom.scss. Then comment out components you do not want from bootstrap-custom. In the application Sass file, replace @import 'bootstrap' with:

@import 'bootstrap-custom'

Sass: Number Precision

bootstrap-sass requires minimum Sass number precision of 10 (default is 5).

Precision is set for Rails and Compass automatically. When using ruby Sass compiler standalone or with the Bower version you can set it with:

::Sass::Script::Number.precision = [10, ::Sass::Script::Number.precision].max

Note that libsass and node-sass do not currently support the precision option, due to an open bug (bug #364) in libsass.

Sass: Autoprefixer

Using Autoprefixer with Bootstrap is recommended. Autoprefixer adds vendor prefixes to CSS rules using values from Can I Use.

JavaScript

assets/javascripts/bootstrap.js contains all of Bootstrap JavaScript, concatenated in the correct order.

JavaScript with Sprockets or Mincer

If you use Sprockets or Mincer, you can require bootstrap-sprockets instead to load the individual modules:

// Load all Bootstrap JavaScript
//= require bootstrap-sprockets

You can also load individual modules, provided you also require any dependencies. You can check dependencies in the Bootstrap JS documentation.

//= require bootstrap/scrollspy
//= require bootstrap/modal
//= require bootstrap/dropdown

Fonts

The fonts are referenced as:

"#{$icon-font-path}#{$icon-font-name}.eot"

$icon-font-path defaults to bootstrap/.

When using with Compass, Sprockets, or Mincer, make sure to import the relevant path helpers before Bootstrap itself, for example:.

@import bootstrap-compass
@import bootstrap

Usage

Sass

Import Bootstrap into a Sass file (for example, application.css.scss) to get all of Bootstrap's styles, mixins and variables!

@import "bootstrap";

You can also include optional bootstrap theme:

@import "bootstrap/theme";

The full list of bootstrap variables can be found here. You can override these by simply redefining the variable before the @import directive, e.g.:

$navbar-default-bg: #312312;
$light-orange: #ff8c00;
$navbar-default-color: $light-orange;

@import "bootstrap";

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Development and Contributing

If you'd like to help with the development of bootstrap-sass itself, read this section.

Upstream Converter

Keeping bootstrap-sass in sync with upstream changes from Bootstrap used to be an error prone and time consuming manual process. With Bootstrap 3 we have introduced a converter that automates this.

Note: if you're just looking to use Bootstrap 3, see the installation section above.

Upstream changes to the Bootstrap project can now be pulled in using the convert rake task.

Here's an example run that would pull down the master branch from the main twbs/bootstrap repo:

rake convert

This will convert the latest LESS to Sass and update to the latest JS. To convert a specific branch or version, pass the branch name or the commit hash as the first task argument:

rake convert[e8a1df5f060bf7e6631554648e0abde150aedbe4]

The latest converter script is located here and does the following:

• Converts upstream bootstrap LESS files to its matching SCSS file.
• Copies all upstream JavaScript into assets/javascripts/bootstrap, an Sprockets manifest at assets/javascripts/bootstrap-sprockets.js, and a concatenation at assets/javascripts/bootstrap.js.
• Copies all upstream font files into assets/fonts/bootstrap.
• Sets Bootstrap::BOOTSTRAP_SHA in version.rb to the branch sha.

This converter fully converts original LESS to SCSS. Conversion is automatic but requires instructions for certain transformations (see converter output). Please submit GitHub issues tagged with conversion.

Credits

bootstrap-sass has a number of major contributors:

• Thomas McDonald
• Tristan Harward
• Peter Gumeson
• Gleb Mazovetskiy

and a significant number of other contributors.

You're in good company

bootstrap-sass is used to build some awesome projects all over the web, including Diaspora, rails_admin, Michael Hartl's Rails Tutorial, gitlabhq and kandan.

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