select2-bootstrap-css,
forked for Bootstrap 3.

Demonstrations available at
http://fk.github.io/select2-bootstrap-css/

Tested with Bootstrap v3.2.0 and Select2 v3.3.2, v3.4.1-v3.4.5, v3.5.1, master
in latest Chrome, Safari, Firefox, Opera (Mac) and IE8-IE10.

• IE9/IE10: Select2 in "Bootstrap input group with button addon" (no height modifier, i. e. .input-sm, .input-lg) is 1px off in height
• box-shadow for .select2-search input do not fit Bootstrap's defaults
• the Select2 dropdown could inherit look-and-feel from Bootstrap dropdowns and/or could honor Bootstrap height sizing classes
• checkboxes and radio-buttons in "Bootstrap input groups" could be vertically aligned to the top (instead of center) if combined with a multi Select2 to address variable height of the Select2 container

• Fixed border-radii for .select2-dropdown-open.select2-drop-above (as reported by @rzschech in t0m#24 (comment), t0m#24 (comment)) and `.select2-dropdown in "Bootstrap input groups with addons".
• Fixed an issue where using Select2 pre v3.4.2 in combination with Bootstrap v3.2.0 and when using Select2 in a "Bootstrap Input Group with Addons" context would result in the original <select> element not being hidden.
• Removed trailing comma in bower.json.

• First version built on Twitter Bootstrap v3.2.0.
• Fixes a bug inherited from Twitter Bootstrap by using its variables which in IE8-IE10 and Firefox caused Select2 widgets in "Bootstrap input groups with radio/checkbox addon" and .input-lg size modifier to be 1px off in height (Bootstrap 3's "input group sizing"-demo at http://getbootstrap.com/components/#input-groups-sizing behaved the same for Bootstrap v3.0.0).
• Updates UI component colors.

• Added main and dependencies section to bower.json.

• First tagged version of the bootstrap3 branch (as requested in t0m#30).

Original select2-bootstrap-css for Bootstrap 2 by Tom Terrace (@tterrace).

The project offers Less and Sass sources for building select2-bootstrap.css; both make use of variables from either Bootstrap (Less) or Bootstrap for Sass. The demo pages are built using Jekyll and there are a bunch of Grunt tasks to ease development.

With Ruby and RubyGems, Jekyll, Bower, node.js, Less and Sass installed, run

npm install && bower install

to install all necessary development dependencies.

• grunt copy copies assets from components to _jekyll – use this in case a new version of Twitter Bootstrap or Select2 are out and need to be tested
• grunt jekyll:build builds docs
• grunt jekyll:serve builds docs and serves them via Jekyll's --watch flag on http://localhost:4000
• grunt watch watches for changes in lib/select2-bootstrap.scss (livereload is enabled)

Develop in lib/select2-bootstrap.scss test your changes using grunt watch and grunt jekyll:serve. Ideally, port your changes to lib/select2-bootstrap.less and make sure tests are passing to verify that Less and Sass compile down to the target CSS via npm test.

• Juri Strumpflohner (@juristr) – adding missing display:block