* Autoprefixer is now required, and `autoprefixer-rails` is now a dependency for the ruby gem. [#824](https://github.com/twbs/bootstrap-sass/issues/824)
* Minimum precision reduced from 10 to 8 [#821](https://github.com/twbs/bootstrap-sass/issues/821)
* Requiring bootstrap JS from npm now works [#812](https://github.com/twbs/bootstrap-sass/issues/812)
* [#260] Add our load path to the global Sass load path - *Tristan Harward*
* [#275] Use GitHub notation in Sass head testing gemfile - *Timo Schilling*
* [#279, #283] Readme improvements - *theverything, Philip Arndt*
## 2.2.2.0
* [#270] Update to Bootstrap 2.2.2 - *Tristan Harward*
* [#266] Add license to gemspec - *Peter Marsh*
## 2.2.1.1
* [#258] Use `bootstrap` prefix for `@import`ing files in `bootstrap/bootstrap.scss` - *Umair Siddique*
## 2.2.1.0
* [#246] Update to Bootstrap 2.2.1 - *Tristan Harward*
* [#246] Pull Bootstrap updates from jlong/sass-twitter-bootstrap - *Tristan Harward*
## 2.1.1.0
* Update to Bootstrap 2.1.1
* [#222] Remove 100% multiplier in vertical-three-colours
* [#227] Fix IE component animation collapse
* [#228] Fix variables documentation link
* [#231] Made .input-block-level a class as well as mixin
## 2.1.0.1
* [#219] Fix expected a color. Got: transparent.
* [#207] Add missing warning style for table row highlighting
* [#208] Use grid-input-span for input spans
## 2.1.0.0
* Updated to Bootstrap 2.1
* Changed some mixin names to be more consistent. Nested mixins in Less are separated by a `-` when they are flattened in Sass.
## 2.0.4.1
* Fix `.row-fluid > spanX` nesting
* Small Javascript fixes for those staying on the 2.0.4 release
* Add `!default` to z-index variables.
## 2.0.4.0
* Updated to Bootstrap 2.0.4
* Switched to Bootstrap 2.0.3+'s method of separating responsive files
* [#149, #150] Fix off by one error introduced with manual revert of media query breakpoints
*`rake debug` and `rake test` both compile bootstrap & bootstrap-responsive
## 2.0.3.1
* [#145, #146] Fix button alignment in collapsing navbar as a result of an incorrect variable
## 2.0.3
* Updated to Bootstrap 2.0.3
* [#106] Support for Rails < 3.1 through Compass
* [#132] Add CI testing
* [#106] Support Rails w/Compass
* [#134] Fix support for Rails w/Compass
## 2.0.2
* [#86] Updated to Bootstrap 2.0.2
Things of note: static navbars now have full width. (to be fixed in 2.0.3) `.navbar-inner > .container { width:940px; }` seems to work in the meanwhile
* [#62] Fixed asset compilation taking a *very* long time.
* [#69, #79, #80] \(Hopefully) clarified README. Now with less cat humour.
* [#91] Removed doubled up Sass extensions for Rails.
* [#63, #73] Allow for overriding of image-path
*[[SO](http://stackoverflow.com/a/9909626/241212)] Added makeFluidColumn mixin for defining fluid columns. Fluid rows must use `@extend .row-fluid`, and any column inside it can use `@include makeFluidColumn(num)`, where `num` is the number of columns. Unfortunately, there is a rather major limitation to this: margins on first-child elements must be overriden. See the attached Stack Overflow answer for more information.
## 2.0.1
* Updated to Bootstrap 2.0.1
* Modified `@mixin opacity()` to take an argument `0...1` rather than `0...100` to be consistent with Compass.
`bootstrap-sass` is a Sass-powered version of [Bootstrap](https://github.com/twbs/bootstrap) 3, ready to drop right into your Sass powered applications.
This is Bootstrap 3. For Bootstrap 4 use the [Bootstrap Ruby gem](http://github.com/twbs/bootstrap-rubygem) if you use Ruby, and the [main repo](http://github.com/twbs/bootstrap) otherwise.
## Installation
Please see the appropriate guide for your environment of choice:
*[Ruby on Rails](#a-ruby-on-rails).
*[Compass](#b-compass-without-rails) not on Rails.
*[Bower](#c-bower).
*[npm / Node.js](#d-npm--nodejs).
### 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.
```ruby
gem'bootstrap-sass','~> 3.3.6'
gem'sass-rails','>= 3.2'
```
`bundle install` and restart your server to make the files available through the pipeline.
Import Bootstrap styles in `app/assets/stylesheets/application.scss`:
```scss
// "bootstrap-sprockets" must be imported before "bootstrap" and "bootstrap/variables"
@import"bootstrap-sprockets";
@import"bootstrap";
```
`bootstrap-sprockets` must be imported before `bootstrap` for the icon fonts to work.
Make sure the file has `.scss` extension (or `.sass` for Sass syntax). If you have just generated a new Rails app,
it may come with a `.css` file instead. If this file exists, it will be served instead of Sass, so rename it:
Then, remove all the `*= require_self` and `*= require_tree .` statements from the sass file. Instead, use `@import` to import Sass files.
Do not use `*= require` in Sass or your other stylesheets will not be [able to access][antirequire] the Bootstrap mixins or variables.
Require Bootstrap Javascripts in `app/assets/javascripts/application.js`:
```js
//= require jquery
//= require bootstrap-sprockets
```
`bootstrap-sprockets` and `bootstrap`[should not both be included](https://github.com/twbs/bootstrap-sass/issues/829#issuecomment-75153827) in `application.js`.
`bootstrap-sprockets` provides individual Bootstrap Javascript files (`alert.js` or `dropdown.js`, for example), while
`bootstrap` provides a concatenated file containing all Bootstrap Javascripts.
#### Bower with Rails
When using [bootstrap-sass Bower package](#c-bower) instead of the gem in Rails, configure assets in `config/application.rb`:
Bootstrap requires the use of [Autoprefixer][autoprefixer].
[Autoprefixer][autoprefixer] adds vendor prefixes to CSS rules using values from [Can I Use](http://caniuse.com/).
To match [upstream Bootstrap's level of browser compatibility](http://getbootstrap.com/getting-started/#support), set Autoprefixer's `browsers` option to:
```json
[
"Android 2.3",
"Android >= 4",
"Chrome >= 20",
"Firefox >= 24",
"Explorer >= 8",
"iOS >= 6",
"Opera >= 12",
"Safari >= 6"
]
```
### JavaScript
[`assets/javascripts/bootstrap.js`](/assets/javascripts/bootstrap.js) contains all of Bootstrap's JavaScript,
concatenated in the [correct order](/assets/javascripts/bootstrap-sprockets.js).
#### JavaScript with Sprockets or Mincer
If you use Sprockets or Mincer, you can require `bootstrap-sprockets` instead to load the individual modules:
