Download

+ +

+ + +

Bootstrap has a few easy ways to quickly get started, each one appealing to a different skill level and use case. Read through to see what suits your particular needs.

+ +

Bootstrap

Compiled and minified CSS, JavaScript, and fonts. No docs or original source files are included.

+ Download Bootstrap

Bootstrap has a few easy ways to quickly get started, each one appealing to a different skill level and use case. Read through to see what suits your particular needs.

- -

Bootstrap

Compiled and minified CSS, JavaScript, and fonts. No docs or original source files are included.

- Download Bootstrap -

Source code

Source Less, JavaScript, and font files, along with our docs. Requires a Less compiler and some setup.

- Download source -

Sass

Bootstrap ported from Less to Sass for easy inclusion in Rails, Compass, or Sass-only projects.

- Download Sass -

Source code

Source Less, JavaScript, and font files, along with our docs. Requires a Less compiler and some setup.

+ Download source

Sass

Bootstrap ported from Less to Sass for easy inclusion in Rails, Compass, or Sass-only projects.

+ Download Sass +

Bootstrap CDN

The folks over at MaxCDN graciously provide CDN support for Bootstrap's CSS and JavaScript. Just use these Bootstrap CDN links.

Bootstrap CDN

The folks over at MaxCDN graciously provide CDN support for Bootstrap's CSS and JavaScript. Just use these Bootstrap CDN links.

{% highlight html %} @@ -45,27 +44,27 @@ lead: "An overview of Bootstrap, how to download and use, basic templates and ex {% endhighlight %} -

Install with Bower

Install and manage Bootstrap's Less, CSS, JavaScript, and fonts using Bower.

- {% highlight bash %}$ bower install bootstrap{% endhighlight %} -

Install with Bower

Install and manage Bootstrap's Less, CSS, JavaScript, and fonts using Bower.

+ {% highlight bash %}$ bower install bootstrap{% endhighlight %} +

- -

Bootstrap is downloadable in two forms, within which you'll find the following directories and files, logically grouping common resources and providing both compiled and minified variations.

jQuery required

Please note that all JavaScript plugins require jQuery to be included, as shown in the starter template. Consult our bower.json to see which versions of jQuery are supported.

+ +

+ + +

Bootstrap is downloadable in two forms, within which you'll find the following directories and files, logically grouping common resources and providing both compiled and minified variations.

Precompiled Bootstrap

Once downloaded, unzip the compressed folder to see the structure of (the compiled) Bootstrap. You'll see something like this:

jQuery required

Please note that all JavaScript plugins require jQuery to be included, as shown in the starter template. Consult our bower.json to see which versions of jQuery are supported.

+ +

Precompiled Bootstrap

Once downloaded, unzip the compressed folder to see the structure of (the compiled) Bootstrap. You'll see something like this:

{% highlight bash %} @@ -85,10 +84,10 @@ bootstrap/ └── glyphicons-halflings-regular.woff {% endhighlight %} -

This is the most basic form of Bootstrap: precompiled files for quick drop-in usage in nearly any web project. We provide compiled CSS and JS (bootstrap.*), as well as compiled and minified CSS and JS (bootstrap.min.*). Fonts from Glyphicons are included, as is the optional Bootstrap theme.

Bootstrap source code

The Bootstrap source code download includes the precompiled CSS, JavaScript, and font assets, along with source LESS, JavaScript, and documentation. More specifically, it includes the following and more:

Bootstrap source code

{% highlight bash %} bootstrap/ ├── less/ @@ -101,19 +100,19 @@ bootstrap/ └── docs/ └── examples/ {% endhighlight %} -

The less/, js/, and fonts/ are the source code for our CSS, JS, and icon fonts (respectively). The dist/ folder includes everything listed in the precompiled download section above. The docs/ folder includes the source code for our documentation, and examples/ of Bootstrap usage. Beyond that, any other included file provides support for packages, license information, and development.

- -

Start with this basic HTML template, or modify these examples. We hope you'll customize our templates and examples, adapting them to suit your needs.

Copy the HTML below to begin working with a minimal Bootstrap document.

+ +

+ + +

Start with this basic HTML template, or modify these examples. We hope you'll customize our templates and examples, adapting them to suit your needs.

+ +

Copy the HTML below to begin working with a minimal Bootstrap document.

{% highlight html %} @@ -140,707 +139,704 @@ bootstrap/ {% endhighlight %} -

- -

Examples

+ + +

Build on the basic template above with Bootstrap's many components. See also Customizing Bootstrap for tips on maintaining your own Bootstrap variants.

+ +

Using the framework

+ +

Starter template

Nothing but the basics: compiled CSS and JavaScript along with a container.

Build on the basic template above with Bootstrap's many components. See also Customizing Bootstrap for tips on maintaining your own Bootstrap variants.

- -

Using the framework

- -

Starter template

Nothing but the basics: compiled CSS and JavaScript along with a container.

- -

Bootstrap theme

Load the optional Bootstrap theme for a visually enhanced experience.

- -

Grids

Multiple examples of grid layouts with all four tiers, nesting, and more.

- -

Jumbotron

Build around the jumbotron with a navbar and some basic grid columns.

- -

Narrow jumbotron

Build a more custom page by narrowing the default container and jumbotron.

+ +

Bootstrap theme

Load the optional Bootstrap theme for a visually enhanced experience.

- -

Navbars in action

- -

Navbar

Super basic template that includes the navbar along with some additional content.

- -

Static top navbar

Super basic template with a static top navbar along with some additional content.

- -

Fixed navbar

Super basic template with a fixed top navbar along with some additional content.

+ +

Grids

Multiple examples of grid layouts with all four tiers, nesting, and more.

- -

Custom components

- -

Cover

A one-page template for building simple and beautiful home pages.

- -

Carousel

Customize the navbar and carousel, then add some new components.

- -

Blog

Simple two-column blog layout with custom navigation, header, and type.

- -

Dashboard

Basic structure for a admin dashboard with fixed sidebar and navbar.

- -

Sign-in page

Custom form layout and design for a simple sign in form.

- -

Justified nav

Create a custom navbar with justified links. Heads up! Not too WebKit friendly.

- -

Sticky footer

Attach a footer to the bottom of the viewport when the content is shorter than it.

- -

Sticky footer with navbar

Attach a footer to the bottom of the viewport with a fixed navbar at the top.

+ +

Jumbotron

Build around the jumbotron with a navbar and some basic grid columns.

- -

Experiments

- -

Non-responsive Bootstrap

Easily disable the responsiveness of Bootstrap per our docs.

- -

Offcanvas

Build a toggleable off-canvas navigation menu for use with Bootstrap.

+ +

Narrow jumbotron

Build a more custom page by narrowing the default container and jumbotron.

- - -

Disabling responsiveness

Navbars in action

+ +

Navbar

Super basic template that includes the navbar along with some additional content.

+ +

Static top navbar

Super basic template with a static top navbar along with some additional content.

+ +

Fixed navbar

Super basic template with a fixed top navbar along with some additional content.

Bootstrap automatically adapts your pages for various screen sizes. - Here's how to disable this feature so your page works like in this non-responsive example.

- -

Steps to disable page responsiveness

Omit the viewport <meta> mentioned in the CSS docs
Override the width on the .container for each grid tier with a single width, for example width: 970px !important; Be sure that this comes after the default Bootstrap CSS. You can optionally avoid the !important with media queries or some selector-fu.
If using navbars, remove all navbar collapsing and expanding behavior.
For grid layouts, use .col-xs-* classes in addition to, or in place of, the medium/large ones. Don't worry, the extra-small device grid scales to all resolutions.

You'll still need Respond.js for IE8 (since our media queries are still there and need to be processed). - This disables the "mobile site" aspects of Bootstrap.

- -

Bootstrap template with responsiveness disabled

We've applied these steps to an example. Read its source code to see the specific changes implemented.

- View non-responsive example -

- - -

Migrating from 2.x to 3.0

Custom components

+ +

Cover

A one-page template for building simple and beautiful home pages.

+ +

Carousel

Customize the navbar and carousel, then add some new components.

+ +

Blog

Simple two-column blog layout with custom navigation, header, and type.

+ +

Dashboard

Basic structure for a admin dashboard with fixed sidebar and navbar.

+ +

Sign-in page

Custom form layout and design for a simple sign in form.

+ +

Justified nav

Create a custom navbar with justified links. Heads up! Not too WebKit friendly.

+ +

Sticky footer

Attach a footer to the bottom of the viewport when the content is shorter than it.

+ +

Sticky footer with navbar

Attach a footer to the bottom of the viewport with a fixed navbar at the top.

Bootstrap 3 is not backwards compatible with v2.x. Use this section as a general guide to upgrading from v2.x to v3.0. For a broader overview, see what's new in the v3.0 release announcement.

- -

Major class changes

This table shows the style changes between v2.x and v3.0.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Bootstrap 2.x	Bootstrap 3.0
`.row-fluid`	`.row`
`.span*`	`.col-md-*`
`.offset*`	`.col-md-offset-*`
`.brand`	`.navbar-brand`
`.nav-collapse`	`.navbar-collapse`
`.nav-toggle`	`.navbar-toggle`
`.btn-navbar`	`.navbar-btn`
`.hero-unit`	`.jumbotron`
`.icon-*`	`.glyphicon .glyphicon-*`
`.btn`	`.btn .btn-default`
`.btn-mini`	`.btn-xs`
`.btn-small`	`.btn-sm`
`.btn-large`	`.btn-lg`
`.alert-error`	`.alert-danger`
`.visible-phone`	`.visible-xs`
`.visible-tablet`	`.visible-sm`
`.visible-desktop`	Split into `.visible-md .visible-lg`
`.hidden-phone`	`.hidden-xs`
`.hidden-tablet`	`.hidden-sm`
`.hidden-desktop`	Split into `.hidden-md .hidden-lg`
`.input-small`	`.input-sm`
`.input-large`	`.input-lg`
`.input-block-level`	`.form-control`
`.control-group`	`.form-group`
`.control-group.warning .control-group.error .control-group.success`	`.form-group.has-*`
`.checkbox.inline` `.radio.inline`	`.checkbox-inline` `.radio-inline`
`.input-prepend` `.input-append`	`.input-group`
`.add-on`	`.input-group-addon`
`.img-polaroid`	`.img-thumbnail`
`ul.unstyled`	`.list-unstyled`
`ul.inline`	`.list-inline`
`.muted`	`.text-muted`
`.label`	`.label .label-default`
`.label-important`	`.label-danger`
`.text-error`	`.text-danger`
`.table .error`	`.table .danger`
`.bar`	`.progress-bar`
`.bar-*`	`.progress-bar-*`
`.accordion`	`.panel-group`
`.accordion-group`	`.panel .panel-default`
`.accordion-heading`	`.panel-heading`
`.accordion-body`	`.panel-collapse`
`.accordion-inner`	`.panel-body`

- -

What's new

We've added new elements and changed some existing ones. Here are the new or updated styles.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Element	Description
Panels	`.panel .panel-default` `.panel-body` `.panel-title` `.panel-heading` `.panel-footer` `.panel-collapse`
List groups	`.list-group` `.list-group-item` `.list-group-item-text` `.list-group-item-heading`
Glyphicons	`.glyphicon`
Jumbotron	`.jumbotron`
Extra small grid (<768px)	`.col-xs-*`
Small grid (≥768px)	`.col-sm-*`
Medium grid (≥992px)	`.col-md-*`
Large grid (≥1200px)	`.col-lg-*`
Responsive utility classes (≥1200px)	`.visible-lg` `.hidden-lg`
Offsets	`.col-sm-offset-` `.col-md-offset-` `.col-lg-offset-*`
Push	`.col-sm-push-` `.col-md-push-` `.col-lg-push-*`
Pull	`.col-sm-pull-` `.col-md-pull-` `.col-lg-pull-*`
Input groups	`.input-group` `.input-group-addon` `.input-group-btn`
Form controls	`.form-control` `.form-group`
Button group sizes	`.btn-group-xs` `.btn-group-sm` `.btn-group-lg`
Navbar text	`.navbar-text`
Navbar header	`.navbar-header`
Justified tabs / pills	`.nav-justified`
Responsive images	`.img-responsive`
Contextual table rows	`.success` `.danger` `.warning` `.active`
Contextual panels	`.panel-success` `.panel-danger` `.panel-warning` `.panel-info`
Modal	`.modal-dialog` `.modal-content`
Thumbnail image	`.img-thumbnail`
Well sizes	`.well-sm` `.well-lg`
Alert links	`.alert-link`

- - -

What's removed

The following elements have been dropped or changed in v3.0.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Element	Removed from 2.x	3.0 Equivalent
Form actions	`.form-actions`	N/A
Search form	`.form-search`	N/A
Form group with info	`.control-group.info`	N/A
Block level from input	`.input-block-level`	No direct equivalent, but forms controls are similar.
Fluid row	`.row-fluid`	`.row` (no more fixed grid)
Controls wrapper	`.controls`	N/A
Controls row	`.controls-row`	`.row` or `.form-group`
Navbar inner	`.navbar-inner`	N/A
Navbar vertical dividers	`.navbar .divider-vertical`	N/A
Dropdown submenu	`.dropdown-submenu`	N/A
Tab alignments	`.tabs-left` `.tabs-right` `.tabs-below`	N/A
Pill-based tabbable area	`.pill-content`	`.tab-content`
Pill-based tabbable area pane	`.pill-pane`	`.tab-pane`
Nav lists	`.nav-list` `.nav-header`	No direct equivalent, but list groups and `.panel-group`s are similar.

- - -

Additional notes

Other changes in v3.0 are not immediately apparent. Base classes, key styles, and behaviors have been adjusted for flexibility and our mobile first approach. Here's a partial list:

By default, text-based form controls now receive only minimal styling. For focus colors and rounded corners, apply the .form-control class on the element to style.
Text-based form controls with the .form-control class applied are now 100% wide by default. Wrap inputs inside <div class="col-*"></div> to control input widths.
.badge no longer has contextual (-success,-primary,etc..) classes.
.btn must also use .btn-default to get the "default" button.
.row is now fluid.
Images are no longer responsive by default. Use .img-responsive for fluid <img> size.
The icons, now .glyphicon, are now font based. Icons also require a base and icon class (e.g. .glyphicon .glyphicon-asterisk).
Typeahead has been dropped, in favor of using Twitter Typeahead.
Modal markup has changed significantly. The .modal-header, .modal-body, and .modal-footer sections are now wrapped in .modal-content and .modal-dialog for better mobile styling and behavior.
The HTML loaded by the remote modal option is now injected into the .modal instead of into the .modal-body. This allows you to also easily vary the header and footer of the modal, not just the modal body.
JavaScript events are namespaced. For example, to handle the modal "show" event, use 'show.bs.modal'. For tabs "shown" use 'shown.bs.tab', etc.

For more information on upgrading to v3.0, and code snippets from the community, see Bootply.

- - -

Browser and device support

Experiments

+ +

Non-responsive Bootstrap

Easily disable the responsiveness of Bootstrap per our docs.

Bootstrap is built to work best in the latest desktop and mobile browsers, meaning older browsers might display differently styled, though fully functional, renderings of certain components.

- -

Supported browsers

Specifically, we support the latest versions of the following:

Chrome (Mac, Windows, iOS, and Android)
Safari (Mac and iOS only, as the Windows version is being abandoned)
Firefox (Mac, Windows)
Internet Explorer
Opera (Mac, Windows)

Unofficially, Bootstrap should look and behave well enough in Chromium and Chrome for Linux, Firefox for Linux, and Internet Explorer 7, though they are not officially supported.

- -

Internet Explorer 8 and 9

Internet Explorer 8 and 9 are also supported, however, please be aware that some CSS3 properties and HTML5 elements are not fully supported by these browsers. In addition, Internet Explorer 8 requires the use of Respond.js to enable media query support.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Feature	Internet Explorer 8	Internet Explorer 9
`border-radius`	Not supported	Supported
`box-shadow`	Not supported	Supported
`transform`	Not supported	Supported, with `-ms` prefix
`transition`	Not supported
`placeholder`	Not supported

+ +

Offcanvas

Build a toggleable off-canvas navigation menu for use with Bootstrap.

+ + + + +

+ + +

Bootstrap automatically adapts your pages for various screen sizes. + Here's how to disable this feature so your page works like in this non-responsive example.

+ +

Steps to disable page responsiveness

Omit the viewport <meta> mentioned in the CSS docs
Override the width on the .container for each grid tier with a single width, for example width: 970px !important; Be sure that this comes after the default Bootstrap CSS. You can optionally avoid the !important with media queries or some selector-fu.
If using navbars, remove all navbar collapsing and expanding behavior.
For grid layouts, use .col-xs-* classes in addition to, or in place of, the medium/large ones. Don't worry, the extra-small device grid scales to all resolutions.

You'll still need Respond.js for IE8 (since our media queries are still there and need to be processed). + This disables the "mobile site" aspects of Bootstrap.

+ +

Bootstrap template with responsiveness disabled

We've applied these steps to an example. Read its source code to see the specific changes implemented.

+ View non-responsive example +

+ + + + +

+ +

Bootstrap 3 is not backwards compatible with v2.x. Use this section as a general guide to upgrading from v2.x to v3.0. For a broader overview, see what's new in the v3.0 release announcement.

+ +

Major class changes

This table shows the style changes between v2.x and v3.0.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Bootstrap 2.x	Bootstrap 3.0
`.row-fluid`	`.row`
`.span*`	`.col-md-*`
`.offset*`	`.col-md-offset-*`
`.brand`	`.navbar-brand`
`.nav-collapse`	`.navbar-collapse`
`.nav-toggle`	`.navbar-toggle`
`.btn-navbar`	`.navbar-btn`
`.hero-unit`	`.jumbotron`
`.icon-*`	`.glyphicon .glyphicon-*`
`.btn`	`.btn .btn-default`
`.btn-mini`	`.btn-xs`
`.btn-small`	`.btn-sm`
`.btn-large`	`.btn-lg`
`.alert-error`	`.alert-danger`
`.visible-phone`	`.visible-xs`
`.visible-tablet`	`.visible-sm`
`.visible-desktop`	Split into `.visible-md .visible-lg`
`.hidden-phone`	`.hidden-xs`
`.hidden-tablet`	`.hidden-sm`
`.hidden-desktop`	Split into `.hidden-md .hidden-lg`
`.input-small`	`.input-sm`
`.input-large`	`.input-lg`
`.input-block-level`	`.form-control`
`.control-group`	`.form-group`
`.control-group.warning .control-group.error .control-group.success`	`.form-group.has-*`
`.checkbox.inline` `.radio.inline`	`.checkbox-inline` `.radio-inline`
`.input-prepend` `.input-append`	`.input-group`
`.add-on`	`.input-group-addon`
`.img-polaroid`	`.img-thumbnail`
`ul.unstyled`	`.list-unstyled`
`ul.inline`	`.list-inline`
`.muted`	`.text-muted`
`.label`	`.label .label-default`
`.label-important`	`.label-danger`
`.text-error`	`.text-danger`
`.table .error`	`.table .danger`
`.bar`	`.progress-bar`
`.bar-*`	`.progress-bar-*`
`.accordion`	`.panel-group`
`.accordion-group`	`.panel .panel-default`
`.accordion-heading`	`.panel-heading`
`.accordion-body`	`.panel-collapse`
`.accordion-inner`	`.panel-body`

+ +

What's new

We've added new elements and changed some existing ones. Here are the new or updated styles.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Element	Description
Panels	`.panel .panel-default` `.panel-body` `.panel-title` `.panel-heading` `.panel-footer` `.panel-collapse`
List groups	`.list-group` `.list-group-item` `.list-group-item-text` `.list-group-item-heading`
Glyphicons	`.glyphicon`
Jumbotron	`.jumbotron`
Extra small grid (<768px)	`.col-xs-*`
Small grid (≥768px)	`.col-sm-*`
Medium grid (≥992px)	`.col-md-*`
Large grid (≥1200px)	`.col-lg-*`
Responsive utility classes (≥1200px)	`.visible-lg` `.hidden-lg`
Offsets	`.col-sm-offset-` `.col-md-offset-` `.col-lg-offset-*`
Push	`.col-sm-push-` `.col-md-push-` `.col-lg-push-*`
Pull	`.col-sm-pull-` `.col-md-pull-` `.col-lg-pull-*`
Input groups	`.input-group` `.input-group-addon` `.input-group-btn`
Form controls	`.form-control` `.form-group`
Button group sizes	`.btn-group-xs` `.btn-group-sm` `.btn-group-lg`
Navbar text	`.navbar-text`
Navbar header	`.navbar-header`
Justified tabs / pills	`.nav-justified`
Responsive images	`.img-responsive`
Contextual table rows	`.success` `.danger` `.warning` `.active`
Contextual panels	`.panel-success` `.panel-danger` `.panel-warning` `.panel-info`
Modal	`.modal-dialog` `.modal-content`
Thumbnail image	`.img-thumbnail`
Well sizes	`.well-sm` `.well-lg`
Alert links	`.alert-link`

+ + +

What's removed

The following elements have been dropped or changed in v3.0.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Element	Removed from 2.x	3.0 Equivalent
Form actions	`.form-actions`	N/A
Search form	`.form-search`	N/A
Form group with info	`.control-group.info`	N/A
Block level from input	`.input-block-level`	No direct equivalent, but forms controls are similar.
Fluid row	`.row-fluid`	`.row` (no more fixed grid)
Controls wrapper	`.controls`	N/A
Controls row	`.controls-row`	`.row` or `.form-group`
Navbar inner	`.navbar-inner`	N/A
Navbar vertical dividers	`.navbar .divider-vertical`	N/A
Dropdown submenu	`.dropdown-submenu`	N/A
Tab alignments	`.tabs-left` `.tabs-right` `.tabs-below`	N/A
Pill-based tabbable area	`.pill-content`	`.tab-content`
Pill-based tabbable area pane	`.pill-pane`	`.tab-pane`
Nav lists	`.nav-list` `.nav-header`	No direct equivalent, but list groups and `.panel-group`s are similar.

+ + +

Additional notes

Other changes in v3.0 are not immediately apparent. Base classes, key styles, and behaviors have been adjusted for flexibility and our mobile first approach. Here's a partial list:

By default, text-based form controls now receive only minimal styling. For focus colors and rounded corners, apply the .form-control class on the element to style.
Text-based form controls with the .form-control class applied are now 100% wide by default. Wrap inputs inside <div class="col-*"></div> to control input widths.
.badge no longer has contextual (-success,-primary,etc..) classes.
.btn must also use .btn-default to get the "default" button.
.row is now fluid.
Images are no longer responsive by default. Use .img-responsive for fluid <img> size.
The icons, now .glyphicon, are now font based. Icons also require a base and icon class (e.g. .glyphicon .glyphicon-asterisk).
Typeahead has been dropped, in favor of using Twitter Typeahead.
Modal markup has changed significantly. The .modal-header, .modal-body, and .modal-footer sections are now wrapped in .modal-content and .modal-dialog for better mobile styling and behavior.
The HTML loaded by the remote modal option is now injected into the .modal instead of into the .modal-body. This allows you to also easily vary the header and footer of the modal, not just the modal body.
JavaScript events are namespaced. For example, to handle the modal "show" event, use 'show.bs.modal'. For tabs "shown" use 'shown.bs.tab', etc.

For more information on upgrading to v3.0, and code snippets from the community, see Bootply.

+ + + + +

+ +

Bootstrap is built to work best in the latest desktop and mobile browsers, meaning older browsers might display differently styled, though fully functional, renderings of certain components.

+ +

Supported browsers

Specifically, we support the latest versions of the following:

Chrome (Mac, Windows, iOS, and Android)
Safari (Mac and iOS only, as the Windows version is being abandoned)
Firefox (Mac, Windows)
Internet Explorer
Opera (Mac, Windows)

Unofficially, Bootstrap should look and behave well enough in Chromium and Chrome for Linux, Firefox for Linux, and Internet Explorer 7, though they are not officially supported.

+ +

Internet Explorer 8 and 9

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Feature	Internet Explorer 8	Internet Explorer 9
`border-radius`	Not supported	Supported
`box-shadow`	Not supported	Supported
`transform`	Not supported	Supported, with `-ms` prefix
`transition`	Not supported
`placeholder`	Not supported

Visit Can I use... for details on browser support of CSS3 and HTML5 features.

Internet Explorer 8 and Respond.js

Beware of the following caveats when using Respond.js in your development and production environments for Internet Explorer 8.

Respond.js and cross-domain CSS

Using Respond.js with CSS hosted on a different (sub)domain (for example, on a CDN) requires some additional setup. See the Respond.js docs for details.

Respond.js and `file://`

Due to browser security rules, Respond.js doesn't work with pages viewed via the file:// protocol (like when opening a local HTML file). To test responsive features in IE8, view your pages over HTTP(S). See the Respond.js docs for details.

Respond.js and `@import`

Respond.js doesn't work with CSS that's referenced via @import. In particular, some Drupal configurations are known to use @import. See the Respond.js docs for details.

Internet Explorer 8 and Respond.js

Beware of the following caveats when using Respond.js in your development and production environments for Internet Explorer 8.

Respond.js and cross-domain CSS

Using Respond.js with CSS hosted on a different (sub)domain (for example, on a CDN) requires some additional setup. See the Respond.js docs for details.

Respond.js and `file://`

Respond.js and `@import`

Respond.js doesn't work with CSS that's referenced via @import. In particular, some Drupal configurations are known to use @import. See the Respond.js docs for details.

Internet Explorer 8 and box-sizing

IE8 does not fully support box-sizing: border-box; when combined with min-width, max-width, min-height, or max-height. For that reason, as of v3.0.1, we no longer use max-width on .containers.

Internet Explorer 8 and box-sizing

IE Compatibility modes

Bootstrap is not supported in the old Internet Explorer compatibility modes. To be sure you're using the latest rendering mode for IE, consider including the appropriate <meta> tag in your pages:

IE Compatibility modes

Bootstrap is not supported in the old Internet Explorer compatibility modes. To be sure you're using the latest rendering mode for IE, consider including the appropriate <meta> tag in your pages:

{% highlight html %} {% endhighlight %} -

Confirm the document mode by opening the debugging tools: press F12 and check the "Document Mode".

This tag is included in all Bootstrap's documentation and examples to ensure the best rendering possible in each supported version of Internet Explorer.

See this StackOverflow question for more information.

Confirm the document mode by opening the debugging tools: press F12 and check the "Document Mode".

This tag is included in all Bootstrap's documentation and examples to ensure the best rendering possible in each supported version of Internet Explorer.

See this StackOverflow question for more information.

Internet Explorer 10 in Windows 8 and Windows Phone 8

Internet Explorer 10 doesn't differentiate device width from viewport width, and thus doesn't properly apply the media queries in Bootstrap's CSS. Normally you'd just add a quick snippet of CSS to fix this:

Internet Explorer 10 in Windows 8 and Windows Phone 8

{% highlight css %} @-ms-viewport { width: device-width; } {% endhighlight %} -

However, this doesn't work as it causes Windows Phone 8 devices to show a mostly desktop view instead of narrow "phone" view. To address this, you'll need to include the following CSS and JavaScript to work around the bug until Microsoft issues a fix.

{% highlight css %} @-webkit-viewport { width: device-width; } @-moz-viewport { width: device-width; } @@ -860,32 +856,32 @@ if (navigator.userAgent.match(/IEMobile\/10\.0/)) { document.querySelector("head").appendChild(msViewportStyle) } {% endhighlight %} -

For more information and usage guidelines, read Windows Phone 8 and Device-Width.

As a heads up, we include this in the Bootstrap docs as an example.

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Safari percent rounding

As of Safari v6.1 for OS X and Safari for iOS v7.0.1, Safari's rendering engine has some trouble with the number of decimal places used in our .col-*-1 grid classes. So if you have 12 individual grid columns, you'll notice that they come up short compared to other rows of columns. We can't do much here (see #9282) but you do have some options:

Add .pull-right to your last grid column to get the hard-right alignment
Tweak your percentages manually to get the perfect rounding for Safari (more difficult than the first option)

We'll keep an eye on this though and update our code if we have an easy solution.

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Modals, navbars, and virtual keyboards

Overflow and scrolling

Support for overflow: hidden on the <body> element is quite limited in iOS and Android. To that end, when you scroll past the top or bottom of a modal in either of those devices' browsers, the <body> content will begin to scroll.

Virtual keyboards

Also, note that if you're using inputs in your modal or navbar, iOS has a rendering bug that doesn't update the position of fixed elements when the virtual keyboard is triggered. A few workarounds for this include transforming your elements to position: absolute or invoking a timer on focus to try to correct the positioning manually. This is not handled by Bootstrap, so it is up to you to decide which solution is best for your application.

Navbar Dropdowns

The .dropdown-backdrop element isn't used on iOS in the nav because of the complexity of z-indexing. Thus, to close dropdowns in navbars, you must directly click the dropdown element (or any other element which will fire a click event in iOS).

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Browser zooming

Page zooming inevitably presents rendering artifacts in some components, both in Bootstrap and the rest of the web. Depending on the issue, we may be able to fix it (search first and then open an issue if need be). However, we tend to ignore these as they often have no direct solution other than hacky workarounds.

- -

Android stock browser

Out of the box, Android 4.1 (and even some newer releases apparently) ship with the Browser app as the default web browser of choice (as opposed to Chrome). Unfortunately, the Browser app has lots of bugs and inconsistencies with CSS in general.

Select menus

On <select> elements, the Android stock browser will not display the side controls if there is a border-radius and/or border applied. Use the snippet of code below to remove the offending CSS and render the <select> as an unstyled element on the Android stock broswer. The useragent sniffing avoids interference with Chrome, Safari, and Mozilla browsers.

For more information and usage guidelines, read Windows Phone 8 and Device-Width.

As a heads up, we include this in the Bootstrap docs as an example.

+ +

Safari percent rounding

Add .pull-right to your last grid column to get the hard-right alignment
Tweak your percentages manually to get the perfect rounding for Safari (more difficult than the first option)

We'll keep an eye on this though and update our code if we have an easy solution.

+ +

Modals, navbars, and virtual keyboards

Overflow and scrolling

Virtual keyboards

Navbar Dropdowns

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Browser zooming

+ +

Android stock browser

Select menus

{% highlight html %} {% endhighlight %} -

Want to see an example? Check out this JS Bin demo.

- -

While we don't officially support any third party plugins or add-ons, we do offer some useful advice to help avoid potential issues in your projects.

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While we don't officially support any third party plugins or add-ons, we do offer some useful advice to help avoid potential issues in your projects.

Box-sizing

Some third party software, including Google Maps and Google Custom Search Engine, conflict with Bootstrap due to * { box-sizing: border-box; }, a rule which makes it so padding does not affect the final computed width of an element. Learn more about box model and sizing at CSS Tricks.

Depending on the context, you may override as-needed (Option 1) or reset the box-sizing for entire regions (Option 2).

Box-sizing

Depending on the context, you may override as-needed (Option 1) or reset the box-sizing for entire regions (Option 2).

{% highlight css %} /* Box-sizing resets * @@ -954,19 +948,18 @@ if (isAndroid) { .reset-box-sizing(); } {% endhighlight %} -

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Bootstrap follows common web standards, and with minimal extra effort, can be used to create sites that are accessible to those using AT.

Skip navigation

If your navigation contains many links and comes before the main content in the DOM, add a Skip to main content link immediately after your opening <body> tag. (read why)

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Bootstrap follows common web standards, and with minimal extra effort, can be used to create sites that are accessible to those using AT.

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Skip navigation

If your navigation contains many links and comes before the main content in the DOM, add a Skip to main content link immediately after your opening <body> tag. (read why)

{% highlight html %} @@ -976,85 +969,82 @@ if (isAndroid) { {% endhighlight %} -

Nested headings

When nesting headings (<h1> - <h6>), your primary document header should be an <h1>. Subsequent headings should make logical use of <h2> - <h6> such that screen readers can construct a table of contents for your pages.

Learn more at HTML CodeSniffer and Penn State's AccessAbility.

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Additional resources

Nested headings

Learn more at HTML CodeSniffer and Penn State's AccessAbility.

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Additional resources

+ + + + +

+ +

Bootstrap is released under the MIT license and is copyright {{ site.time | date: "%Y" }} Twitter. Boiled down to smaller chunks, it can be described with the following conditions.

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It requires you to:

Include the license and copyright notice in your works

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It permits you to:

Freely download and use Bootstrap, in whole or in part, for personal, private, company internal, or commercial purposes
Use Bootstrap in packages or distributions that you create
Modify the source code
Grant a sublicense to modify and distribute Bootstrap to third parties not included in the license

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It forbids you to:

Hold the authors and license owners liable for damages as Bootstrap is provided without warranty
Hold the creators or copyright holders of Bootstrap liable
Redistribute any piece of Bootstrap without proper attribution
Use any marks owned by Twitter in any way that might state or imply that Twitter endorses your distribution
Use any marks owned by Twitter in any way that might state or imply that you created the Twitter software in question

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It does not require you to:

Include the source of Bootstrap itself, or of any modifications you may have made to it, in any redistribution you may assemble that includes it
Submit changes that you make to Bootstrap back to the Bootstrap project (though such feedback is encouraged)

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The full Bootstrap license is located in the project repository for more information.

+ + +

+ +

Bootstrap is best maintained when you treat it as a separate and independently-versioned dependency in your development environment. Doing this makes upgrading Bootstrap easier in the future.

+ +

Once you've downloaded and included Bootstrap's styles and scripts, you can customize its components. Just create a new stylesheet (LESS, if you like, or just plain CSS) to house your customizations.

+ +

Compiled or minified?

Unless you plan on reading the CSS, go with minified stylesheets. It's the same code, just compacted. Minified styles use less bandwidth, which is good, especially in production environments.

From there, include whatever Bootstrap components and HTML content you need to create templates for your site's pages.

- -

Bootstrap is released under the MIT license and is copyright {{ site.time | date: "%Y" }} Twitter. Boiled down to smaller chunks, it can be described with the following conditions.

- -

It requires you to:

Include the license and copyright notice in your works

- -

It permits you to:

Freely download and use Bootstrap, in whole or in part, for personal, private, company internal, or commercial purposes
Use Bootstrap in packages or distributions that you create
Modify the source code
Grant a sublicense to modify and distribute Bootstrap to third parties not included in the license

- -

It forbids you to:

Hold the authors and license owners liable for damages as Bootstrap is provided without warranty
Hold the creators or copyright holders of Bootstrap liable
Redistribute any piece of Bootstrap without proper attribution
Use any marks owned by Twitter in any way that might state or imply that Twitter endorses your distribution
Use any marks owned by Twitter in any way that might state or imply that you created the Twitter software in question

- -

It does not require you to:

Include the source of Bootstrap itself, or of any modifications you may have made to it, in any redistribution you may assemble that includes it
Submit changes that you make to Bootstrap back to the Bootstrap project (though such feedback is encouraged)

- -

The full Bootstrap license is located in the project repository for more information.

- - -

- -

Bootstrap is best maintained when you treat it as a separate and independently-versioned dependency in your development environment. Doing this makes upgrading Bootstrap easier in the future.

- -

Once you've downloaded and included Bootstrap's styles and scripts, you can customize its components. Just create a new stylesheet (LESS, if you like, or just plain CSS) to house your customizations.

- -

Compiled or minified?

Unless you plan on reading the CSS, go with minified stylesheets. It's the same code, just compacted. Minified styles use less bandwidth, which is good, especially in production environments.

- -

From there, include whatever Bootstrap components and HTML content you need to create templates for your site's pages.

- -

Customizing components

You can customize components to varying degrees, but most fall into two camps: light customizations and overhauls. Plenty examples of both are available from third parties.

We define light customizations as superficial changes, for example, color and font changes to existing Bootstrap components. A light customization example is the Twitter Translation Center (coded by @mdo). Let's look at how to implement the custom button we wrote for this site, .btn-ttc.

The stock Bootstrap buttons require just one class, .btn, to start. Here we extend the .btn style with a new modifier class, .btn-ttc, that we will create. This gives us a distinct custom look with minimal effort.

Our customized button will be coded like this:

Customizing components

You can customize components to varying degrees, but most fall into two camps: light customizations and overhauls. Plenty examples of both are available from third parties.

Our customized button will be coded like this:

{% highlight html %} {% endhighlight %} -

Note how .btn-ttc is added to the standard .btn class.

To implement this, in the custom stylesheet, add the following CSS:

{% highlight css %} /* Custom button @@ -1085,23 +1075,22 @@ if (isAndroid) { } {% endhighlight %} -

In short: Look to the style source and duplicate the selectors you need for your modifications.

In summary, here's the basic workflow:

For each element you want to customize, find its code in the compiled Bootstrap CSS.
Copy the component's selector and styles and paste them in your custom stylesheet. For instance, to customize the navbar background, just copy the .navbar style specification.
In your custom stylesheet, edit the CSS you just copied from the Bootstrap source. No need for prepending additional classes, or appending !important here. Keep it simple.
Rinse and repeat until you're happy with your customizations.

Once you are comfortable performing light customizations, visual overhauls are just as straightforward. For a site like Karma, which uses Bootstrap as a CSS reset with heavy modifications, more extensive work is involved. But the same principle applies: include Bootstrap's default stylesheet first, then apply your custom stylesheet.

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Alternate customization methods

While not recommended for folks new to Bootstrap, you may use one of two alternate methods for customization. The first is modifying the source .less files (making upgrades super difficult), and the second is mapping source LESS code to your own classes via mixins. For the time being, neither of those options are documented here.

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Removing potential bloat

Not all sites and applications need to make use of everything Bootstrap has to offer, especially in production environments where optimizing bandwidth is an issue. We encourage you to remove whatever is unused with our Customizer.

Using the Customizer, simply uncheck any component, feature, or asset you don't need. Hit download and swap out the default Bootstrap files with these newly customized ones. You'll get vanilla Bootstrap, but without the features *you* deem unnecessary. All custom builds include compiled and minified versions, so use whichever works for you.

- +

In short: Look to the style source and duplicate the selectors you need for your modifications.

In summary, here's the basic workflow:

For each element you want to customize, find its code in the compiled Bootstrap CSS.
Copy the component's selector and styles and paste them in your custom stylesheet. For instance, to customize the navbar background, just copy the .navbar style specification.
In your custom stylesheet, edit the CSS you just copied from the Bootstrap source. No need for prepending additional classes, or appending !important here. Keep it simple.
Rinse and repeat until you're happy with your customizations.

+ +

Alternate customization methods

+ +

Removing potential bloat

-- cgit v1.2.3

Download

Download

Bootstrap

Bootstrap

Source code

Sass

Source code

Sass

Bootstrap CDN

Bootstrap CDN

Install with Bower

Install with Bower

What's included

jQuery required

What's included

Precompiled Bootstrap

jQuery required

Precompiled Bootstrap

Bootstrap source code

Bootstrap source code

Basic template

Basic template

Examples

Examples

Using the framework

Starter template

Using the framework

Starter template

Bootstrap theme

Grids

Jumbotron

Narrow jumbotron

Bootstrap theme

Navbars in action

Navbar

Static top navbar

Fixed navbar

Grids

Custom components

Cover

Carousel

Blog

Dashboard

Sign-in page

Justified nav

Sticky footer

Sticky footer with navbar

Jumbotron

Experiments

Non-responsive Bootstrap

Offcanvas

Narrow jumbotron

Disabling responsiveness

Navbars in action

Navbar

Static top navbar

Fixed navbar

Steps to disable page responsiveness

Bootstrap template with responsiveness disabled

Migrating from 2.x to 3.0

Custom components

Cover

Carousel

Blog

Dashboard

Sign-in page

Justified nav

Sticky footer

Sticky footer with navbar

Major class changes

What's new

What's removed

Additional notes

Browser and device support

Experiments

Non-responsive Bootstrap

Supported browsers

Internet Explorer 8 and 9

Offcanvas

Disabling responsiveness

Respond.js and `file://`

Respond.js and `@import`

Respond.js and `file://`

Respond.js and `@import`