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# Bootstrap for Sass
[](http://travis-ci.org/thomas-mcdonald/bootstrap-sass)
`bootstrap-sass` is an Sass-powered version of [Twitter's Bootstrap](http://github.com/twitter/bootstrap), ready to drop right into your Sass powered applications.
Enjoy.
## Usage
### Rails
In your Gemfile:
gem 'sass-rails', '~> 3.1'
gem 'bootstrap-sass', '~> 2.1.1.0'
#### CSS
Import "bootstrap" in your SCSS file of choice to get all of Bootstrap's styles, mixins and variables! We recommend against using `//= require` directives, since none of your other stylesheets will be [able to use](https://github.com/thomas-mcdonald/bootstrap-sass/issues/79#issuecomment-4428595) the awesome mixins that Bootstrap has defined.
@import "bootstrap";
#### Javascripts
You can include the Bootstrap javascripts through two methods. In this case, Sprocket's `//= require` directives are useful, since there is no better alternative.
We have a helper that includes all available javascripts:
// Loads all Bootstrap javascripts
//= require bootstrap
You can also load individual modules, provided you sort out any related dependencies.
//= require bootstrap-scrollspy
//= require bootstrap-modal
//= require bootstrap-dropdown
Simples.
### Compass
`bootstrap-sass` 2.0 now comes with support for Compass, meaning projects that don't use Rails can get in on the fun Bootstrap web.
#### New project
Install the gem and create a new project using the gem.
gem install bootstrap-sass
compass create compass-test -r bootstrap-sass --using bootstrap
This will sort a few things out:
* You'll get a starting `styles.scss` ready for your alterations
* You'll get a compiled stylesheet compiled & ready to drop into your application
* We'll also copy the Bootstrap javascripts & images into their respective folders for you, absolutely free of charge! How cool is that?
#### Existing project
Install the gem, add the require statement to the top of your configuration file, and install the extension.
gem install bootstrap-sass
# In config.rb
require 'bootstrap-sass'
compass install bootstrap
You'll get the same benefits as those starting from scratch. Radical.
## Configuration
Need to configure a variable or two? Simply define the value of the variable you want to change *before* importing Bootstrap. Sass will respect your existing definition rather than overwriting it with the Bootstrap defaults. A list of customisable variables can be found in the [Bootstrap documentation](http://twitter.github.com/bootstrap/customize.html#variables).
$btnPrimaryBackground: #f00;
@import "bootstrap";
**Note**: It's important that the file you are importing is not named `bootstrap`, since this will cause an import loop. As a general rule, errors are something you should try to avoid.
### Passing multiple values to mixins
Some CSS3 properties take multiple values, such as `box-shadow` or `text-shadow`. To pass multiple values to the Bootstrap mixins, you must escape the values or else the Sass parser will choke on the commas. Here's how to escape the values in Sass:
.selector {
@include box-shadow(#{0 2px 5px rgba(0,0,0,.25) inset, 0 -2px 5px rgba(0,0,0,.25) inset});
}
### Responsive styling?
As per the Bootstrap project we don't include the responsive styles by default. `@import "bootstrap-responsive";` to get them.
## Versioning
Bootstrap [claims](https://github.com/twitter/bootstrap#versioning) to use SemVer, although this is for values of public API that don't seem to include selectively requiring CSS components (see breaking change 2.0.2 -> 2.0.3). Since many people using bootstrap-sass *do* selectively require CSS components and I consider it part of the public API we can't really follow SemVer without becoming wildly out of sync with the Bootstrap version number, which is confusing for everyone involved. Further releases to bootstrap-sass will therefore have version numbers of the form `2.x.x.y`, where `2.x.x` is the release of Bootstrap we should be compatible with, and `y` is the patch version.
### Bundler?
gem 'bootstrap-sass', '~> 2.1.1.0'
Don't use the standard `~> 2.1.x`. Your apps may break.
## Who
bootstrap-sass is a project by [Thomas McDonald](https://twitter.com/#!/thomasmcdonald_), with support from [other awesome people](https://github.com/thomas-mcdonald/bootstrap-sass/graphs/contributors).
## You're in good company
bootstrap-sass is used to build some awesome projects, including [Diaspora](http://diasporaproject.org/), [rails_admin](https://github.com/sferik/rails_admin), Michael Hartl's [Rails Tutorial](http://railstutorial.org/) and [gitlabhq](http://gitlabhq.com/). Using bootstrap-sass? I'd love it if you let me know.
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