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.

Compiled CSS, JS, and fonts

The fastest way to get Bootstrap is to download the precompiled and minified versions of our CSS, JavaScript, and fonts. No documentation or original source code files are included.

Download Bootstrap

Additional downloads

Download source code

Get the latest Bootstrap LESS and JavaScript source code by downloading it directly from GitHub.

Clone or fork via GitHub

Visit us on GitHub to clone or fork the Bootstrap project.

Install with Bower

Install and manage Bootstrap's styles, JavaScript, and documentation using Bower.

$ bower install bootstrap

Bootstrap CDN

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

<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">

<!-- Optional theme -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap-theme.min.css">

<!-- Latest compiled and minified JavaScript -->
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>

Compiling Bootstrap's LESS files

If you work with Bootstrap's uncompiled source code, you need to compile the LESS files to produce usable CSS files. For compiling LESS files into CSS, we only officially support Recess, which is Twitter's CSS hinter based on less.js.

What's included

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.

Precompiled Bootstrap

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

bootstrap/
├── css/
│   ├── bootstrap.css
│   ├── bootstrap.min.css
│   ├── bootstrap-theme.css
│   └── bootstrap-theme.min.css
├── js/
│   ├── bootstrap.js
│   └── bootstrap.min.js
└── fonts/
    ├── glyphicons-halflings-regular.eot
    ├── glyphicons-halflings-regular.svg
    ├── glyphicons-halflings-regular.ttf
    └── glyphicons-halflings-regular.woff

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/
├── less/
├── js/
├── fonts/
├── dist/
│   ├── css/
│   ├── js/
│   └── fonts/
├── docs-assets/
├── examples/
└── *.html

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. docs-assets/, examples/, and all *.html files are for our documentation. Beyond that, any other included file provides support for packages, license information, and development.

Basic template

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.

<!DOCTYPE html>
<html>
  <head>
    <title>Bootstrap 101 Template</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
      <script src="https://oss.maxcdn.com/libs/respond.js/1.3.0/respond.min.js"></script>
    <![endif]-->
  </head>
  <body>
    <h1>Hello, world!</h1>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="https://code.jquery.com/jquery.js"></script>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="js/bootstrap.min.js"></script>
  </body>
</html>

Examples

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

Starter template

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

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.

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.

Sign-in page

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

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.

Justified nav

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

Offcanvas

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

Carousel

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

Cover

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

Dashboard

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

Non-responsive Bootstrap

Easily disable the responsiveness of Bootstrap per our docs.

Bootstrap theme

Load the optional Bootstrap theme for a visually enhanced experience.

Disabling responsiveness

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

  1. Omit the viewport <meta> mentioned in the CSS docs
  2. 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.
  3. If using navbars, remove all navbar collapsing and expanding behavior.
  4. 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

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
.container-fluid .container
.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
.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
Fluid container .container-fluid .container (no more fixed grid)
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-groups 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.
  • .container and .row are now fluid (percentage-based).
  • 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 support

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

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 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.

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:

<meta http-equiv="X-UA-Compatible" content="IE=edge">

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:

@-ms-viewport       { width: device-width; }

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.

@-webkit-viewport   { width: device-width; }
@-moz-viewport      { width: device-width; }
@-ms-viewport       { width: device-width; }
@-o-viewport        { width: device-width; }
@viewport           { width: device-width; }

if (navigator.userAgent.match(/IEMobile\/10\.0/)) {
  var msViewportStyle = document.createElement("style")
  msViewportStyle.appendChild(
    document.createTextNode(
      "@-ms-viewport{width:auto!important}"
    )
  )
  document.getElementsByTagName("head")[0].appendChild(msViewportStyle)
}

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

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.

Modals and mobile devices

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 – 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.

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.

Third party support

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 resets
 *
 * Reset individual elements or override regions to avoid conflicts due to
 * global box model settings of Bootstrap. Two options, individual overrides and
 * region resets, are available as plain CSS and uncompiled LESS formats.
 */

/* Option 1A: Override a single element's box model via CSS */
.element {
  -webkit-box-sizing: content-box;
     -moz-box-sizing: content-box;
          box-sizing: content-box;
}

/* Option 1B: Override a single element's box model by using a Bootstrap LESS mixin */
.element {
  .box-sizing(content-box);
}

/* Option 2A: Reset an entire region via CSS */
.reset-box-sizing,
.reset-box-sizing *,
.reset-box-sizing *:before,
.reset-box-sizing *:after {
  -webkit-box-sizing: content-box;
     -moz-box-sizing: content-box;
          box-sizing: content-box;
}

/* Option 2B: Reset an entire region with a custom LESS mixin */
.reset-box-sizing {
  &,
  *,
  *:before,
  *:after {
    .box-sizing(content-box);
  }
}
.element {
  .reset-box-sizing();
}

Accessibility

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)

<body>
  <a href="#content" class="sr-only">Skip to main content</a>
  <div class="container" id="content">
    The main page content.
  </div>
</body>

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.

Additional resources