Get the lowdown on the key pieces of Bootstrap's infrastructure, including our approach to better, faster, stronger web development.

HTML5 doctype

Bootstrap makes use of certain HTML elements and CSS properties that require the use of the HTML5 doctype. Include it at the beginning of all your projects.

<!DOCTYPE html>
<html lang="en">
  ...
</html>

Mobile first

With Bootstrap 2, we added optional mobile friendly styles for key aspects of the framework. With Bootstrap 3, we've rewritten the project to be mobile friendly from the start. Instead of adding on optional mobile styles, they're baked right into the core. In fact, Bootstrap is mobile first. Mobile first styles can be found throughout the entire library instead of in separate files.

To ensure proper rendering and touch zooming, add the viewport meta tag to your <head>.

<meta name="viewport" content="width=device-width, initial-scale=1">

You can disable zooming capabilities on mobile devices by adding user-scalable=no to the viewport meta tag. This disables zooming, meaning users are only able to scroll, and results in your site feeling a bit more like a native application. Overall, we don't recommend this on every site, so use caution!

<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">

Typography and links

Bootstrap sets basic global display, typography, and link styles. Specifically, we:

Set background-color: #fff; on the body
Use the @font-family-base, @font-size-base, and @line-height-base attributes as our typographic base
Set the global link color via @link-color and apply link underlines only on :hover

These styles can be found within scaffolding.less.

Normalize.css

For improved cross-browser rendering, we use Normalize.css, a project by Nicolas Gallagher and Jonathan Neal.

Containers

Bootstrap requires a containing element to wrap site contents and house our grid system. You may choose one of two containers to use in your projects. Note that, due to padding and more, neither container is nestable.

Use .container for a responsive fixed width container.

<div class="container">
  ...
</div>

Use .container-fluid for a full width container, spanning the entire width of your viewport.

<div class="container-fluid">
  ...
</div>

Bootstrap includes a responsive, mobile first fluid grid system that appropriately scales up to 12 columns as the device or viewport size increases. It includes predefined classes for easy layout options, as well as powerful mixins for generating more semantic layouts.

Introduction

Grid systems are used for creating page layouts through a series of rows and columns that house your content. Here's how the Bootstrap grid system works:

Rows must be placed within a .container (fixed-width) or .container-fluid (full-width) for proper alignment and padding.
Use rows to create horizontal groups of columns.
Content should be placed within columns, and only columns may be immediate children of rows.
Predefined grid classes like .row and .col-xs-4 are available for quickly making grid layouts. Less mixins can also be used for more semantic layouts.
Columns create gutters (gaps between column content) via padding. That padding is offset in rows for the first and last column via negative margin on .rows.
The negative margin is why the examples below are outdented. It's so that content within grid columns is lined up with non-grid content.
Grid columns are created by specifying the number of twelve available columns you wish to span. For example, three equal columns would use three .col-xs-4.
If more than 12 columns are placed within a single row, each group of extra columns will, as one unit, wrap onto a new line.
Grid classes apply to devices with screen widths greater than or equal to the breakpoint sizes, and override grid classes targeted at smaller devices. Therefore, e.g. applying any .col-md-* class to an element will not only affect its styling on medium devices but also on large devices if a .col-lg-* class is not present.

Look to the examples for applying these principles to your code.

Media queries

We use the following media queries in our Less files to create the key breakpoints in our grid system.

/* Extra small devices (phones, less than 576px) */
/* No media query since this is the default in Bootstrap */

/* Small devices (phablets, 576px and up) */
@media (min-width: @screen-sm-min) { ... }

/* Medium devices (tablets, 768px and up) */
@media (min-width: @screen-md-min) { ... }

/* Large devices (desktops, 992px and up) */
@media (min-width: @screen-lg-min) { ... }

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: @screen-xl-min) { ... }

We occasionally expand on these media queries to include a max-width to limit CSS to a narrower set of devices.

@media (max-width: @screen-xs-max) { ... }
@media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) { ... }
@media (min-width: @screen-md-min) and (max-width: @screen-md-max) { ... }
@media (min-width: @screen-lg-min) and (max-width: @screen-lg-max) { ... }
@media (min-width: @screen-xl-min) { ... }

Grid options

See how aspects of the Bootstrap grid system work across multiple devices with a handy table.

	Extra small devices Phones (<576px)	Small devices Tablets (≥576px)	Medium devices Desktops (≥768px)	Large devices Desktops (≥992px)	Extra large devices Desktops (≥1200px)
Grid behavior	Horizontal at all times	Collapsed to start, horizontal above breakpoints
Container width	None (auto)	None (auto)	720px	940px	1140px
Class prefix	`.col-xs-`	`.col-sm-`	`.col-md-`	`.col-lg-`	`.col-xl-`
# of columns	12
Column width	Auto	Auto	~46px	~56px	~73px
Gutter width	24px (12px on each side of a column)
Nestable	Yes
Offsets	Yes
Column ordering	Yes

Example: Stacked-to-horizontal

Using a single set of .col-md-* grid classes, you can create a basic grid system that starts out stacked on mobile devices and tablet devices (the extra small to small range) before becoming horizontal on desktop (medium) devices. Place grid columns in any .row.

.col-md-1

.col-md-8

.col-md-4

.col-md-6

<div class="row">
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
  <div class="col-md-1">.col-md-1</div>
</div>
<div class="row">
  <div class="col-md-8">.col-md-8</div>
  <div class="col-md-4">.col-md-4</div>
</div>
<div class="row">
  <div class="col-md-4">.col-md-4</div>
  <div class="col-md-4">.col-md-4</div>
  <div class="col-md-4">.col-md-4</div>
</div>
<div class="row">
  <div class="col-md-6">.col-md-6</div>
  <div class="col-md-6">.col-md-6</div>
</div>

Example: Fluid container

Turn any fixed-width grid layout into a full-width layout by changing your outermost .container to .container-fluid.

<div class="container-fluid">
  <div class="row">
    ...
  </div>
</div>

Example: Mobile and desktop

Don't want your columns to simply stack in smaller devices? Use the extra small and medium device grid classes by adding .col-xs-* .col-md-* to your columns. See the example below for a better idea of how it all works.

.col-xs-12 .col-md-8

.col-xs-6 .col-md-4

.col-xs-6

<!-- Stack the columns on mobile by making one full-width and the other half-width -->
<div class="row">
  <div class="col-xs-12 col-md-8">.col-xs-12 .col-md-8</div>
  <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>

<!-- Columns start at 50% wide on mobile and bump up to 33.3% wide on desktop -->
<div class="row">
  <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
  <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
  <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>

<!-- Columns are always 50% wide, on mobile and desktop -->
<div class="row">
  <div class="col-xs-6">.col-xs-6</div>
  <div class="col-xs-6">.col-xs-6</div>
</div>

Example: Mobile, tablet, desktop

Build on the previous example by creating even more dynamic and powerful layouts with tablet .col-sm-* classes.

.col-xs-12 .col-sm-6 .col-md-8

.col-xs-6 .col-md-4

.col-xs-6 .col-sm-4

<div class="row">
  <div class="col-xs-12 col-sm-6 col-md-8">.col-xs-12 .col-sm-6 .col-md-8</div>
  <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>
<div class="row">
  <div class="col-xs-6 col-sm-4">.col-xs-6 .col-sm-4</div>
  <div class="col-xs-6 col-sm-4">.col-xs-6 .col-sm-4</div>
  <!-- Optional: clear the XS cols if their content doesn't match in height -->
  <div class="clearfix visible-xs-block"></div>
  <div class="col-xs-6 col-sm-4">.col-xs-6 .col-sm-4</div>
</div>

Example: Column wrapping

If more than 12 columns are placed within a single row, each group of extra columns will, as one unit, wrap onto a new line.

.col-xs-9

.col-xs-4
Since 9 + 4 = 13 > 12, this 4-column-wide div gets wrapped onto a new line as one contiguous unit.

.col-xs-6
Subsequent columns continue along the new line.

<div class="row">
  <div class="col-xs-9">.col-xs-9</div>
  <div class="col-xs-4">.col-xs-4<br>Since 9 + 4 = 13 &gt; 12, this 4-column-wide div gets wrapped onto a new line as one contiguous unit.</div>
  <div class="col-xs-6">.col-xs-6<br>Subsequent columns continue along the new line.</div>
</div>

Equal height columns

If you want the columns of your grid to have the same height, add the .row-equal-height modifier.

This can be used to match the height of nested containers, or to control the behaviour of columns that wrap to a new line.

Equal height columns use flexbox which is not supported in earlier versions of some browsers.

Without row-equal-height

Column 1. This column contains more content than the following columns and would naturally have a greater height.

Column 2.

Column 3.

Column 4.

With row-equal-height

Column 1. This column contains more content than the following columns and would naturally have a greater height.

Column 2.

Column 3.

Column 4.

<div class="row row-equal-height">
  <div class="col-xs-4">Column 1. This column...</div>
  <div class="col-xs-4">Column 2.</div>
  <div class="col-xs-4">Column 3.</div>
  <div class="col-xs-4">Column 4.</div>
</div>

Responsive column resets

With the four tiers of grids available you're bound to run into issues where, at certain breakpoints, your columns don't clear quite right as one is taller than the other. To fix that, use a combination of a .clearfix and our responsive utility classes.

.col-xs-6 .col-sm-3
Resize your viewport or check it out on your phone for an example.

.col-xs-6 .col-sm-3

<div class="row">
  <div class="col-xs-6 col-sm-3">.col-xs-6 .col-sm-3</div>
  <div class="col-xs-6 col-sm-3">.col-xs-6 .col-sm-3</div>

  <!-- Add the extra clearfix for only the required viewport -->
  <div class="clearfix visible-xs-block"></div>

  <div class="col-xs-6 col-sm-3">.col-xs-6 .col-sm-3</div>
  <div class="col-xs-6 col-sm-3">.col-xs-6 .col-sm-3</div>
</div>

In addition to column clearing at responsive breakpoints, you may need to reset offsets, pushes, or pulls. See this in action in the grid example.

<div class="row">
  <div class="col-sm-5 col-md-6">.col-sm-5 .col-md-6</div>
  <div class="col-sm-5 col-sm-offset-2 col-md-6 col-md-offset-0">.col-sm-5 .col-sm-offset-2 .col-md-6 .col-md-offset-0</div>
</div>

<div class="row">
  <div class="col-sm-6 col-md-5 col-lg-6">.col-sm-6 .col-md-5 .col-lg-6</div>
  <div class="col-sm-6 col-md-5 col-md-offset-2 col-lg-6 col-lg-offset-0">.col-sm-6 .col-md-5 .col-md-offset-2 .col-lg-6 .col-lg-offset-0</div>
</div>

Offsetting columns

Move columns to the right using .col-md-offset-* classes. These classes increase the left margin of a column by * columns. For example, .col-md-offset-4 moves .col-md-4 over four columns.

.col-md-4

.col-md-4 .col-md-offset-4

.col-md-3 .col-md-offset-3

.col-md-6 .col-md-offset-3

<div class="row">
  <div class="col-md-4">.col-md-4</div>
  <div class="col-md-4 col-md-offset-4">.col-md-4 .col-md-offset-4</div>
</div>
<div class="row">
  <div class="col-md-3 col-md-offset-3">.col-md-3 .col-md-offset-3</div>
  <div class="col-md-3 col-md-offset-3">.col-md-3 .col-md-offset-3</div>
</div>
<div class="row">
  <div class="col-md-6 col-md-offset-3">.col-md-6 .col-md-offset-3</div>
</div>

Nesting columns

To nest your content with the default grid, add a new .row and set of .col-sm-* columns within an existing .col-sm-* column. Nested rows should include a set of columns that add up to 12 or fewer (it is not required that you use all 12 available columns).

Level 1: .col-sm-9

Level 2: .col-xs-8 .col-sm-6

Level 2: .col-xs-4 .col-sm-6

<div class="row">
  <div class="col-sm-9">
    Level 1: .col-sm-9
    <div class="row">
      <div class="col-xs-8 col-sm-6">
        Level 2: .col-xs-8 .col-sm-6
      </div>
      <div class="col-xs-4 col-sm-6">
        Level 2: .col-xs-4 .col-sm-6
      </div>
    </div>
  </div>
</div>

Column ordering

Easily change the order of our built-in grid columns with .col-md-push-* and .col-md-pull-* modifier classes.

.col-md-9 .col-md-push-3

.col-md-3 .col-md-pull-9

<div class="row">
  <div class="col-md-9 col-md-push-3">.col-md-9 .col-md-push-3</div>
  <div class="col-md-3 col-md-pull-9">.col-md-3 .col-md-pull-9</div>
</div>

Headings

All HTML headings, <h1> through <h6>, are available. .h1 through .h6 classes are also available, for when you want to match the font styling of a heading but still want your text to be displayed inline.

h1. Bootstrap heading	bold 42px line-height 48px margin-bottom 8px bold 28px line-height 32px margin-bottom 4px
h2. Bootstrap heading	bold 28px line-height 32px margin-bottom 4px bold 22px line-height 30px margin-bottom 2px
h3. Bootstrap heading	semi-bold 22px line-height 30px margin-bottom 2px semi-bold 18px line-height 24px
h4. Bootstrap heading	semi-bold 18px line-height 24px semi-bold 16px line-height 24px
h5. Bootstrap heading	semi-bold 16px line-height 24px
h6. Bootstrap heading	semi-bold 14px line-height 24px

<h1>h1. Bootstrap heading</h1>
<h2>h2. Bootstrap heading</h2>
<h3>h3. Bootstrap heading</h3>
<h4>h4. Bootstrap heading</h4>
<h5>h5. Bootstrap heading</h5>
<h6>h6. Bootstrap heading</h6>

Create contextual headings with the built in background helper classes.

h1. Bootstrap heading

h2. Bootstrap heading

h3. Bootstrap heading

h4. Bootstrap heading

h5. Bootstrap heading

h6. Bootstrap heading

h1. Bootstrap heading

h2. Bootstrap heading

h3. Bootstrap heading

h4. Bootstrap heading

h5. Bootstrap heading

h6. Bootstrap heading

h1. Bootstrap heading

h2. Bootstrap heading

h3. Bootstrap heading

h4. Bootstrap heading

h5. Bootstrap heading

h6. Bootstrap heading

<div class="bg-default">
    <h1>h1. Bootstrap heading</h1>
    <h2>h2. Bootstrap heading</h2>
    <h3>h3. Bootstrap heading</h3>
    <h4>h4. Bootstrap heading</h4>
    <h5>h5. Bootstrap heading</h5>
    <h6>h6. Bootstrap heading</h6>
</div>
<div class="bg-info">
    <h1>h1. Bootstrap heading</h1>
    <h2>h2. Bootstrap heading</h2>
    <h3>h3. Bootstrap heading</h3>
    <h4>h4. Bootstrap heading</h4>
    <h5>h5. Bootstrap heading</h5>
    <h6>h6. Bootstrap heading</h6>
</div>
<div class="bg-primary">
    <h1>h1. Bootstrap heading</h1>
    <h2>h2. Bootstrap heading</h2>
    <h3>h3. Bootstrap heading</h3>
    <h4>h4. Bootstrap heading</h4>
    <h5>h5. Bootstrap heading</h5>
    <h6>h6. Bootstrap heading</h6>
</div>

Display headings

Traditional heading elements are designed to work best in the meat of your page content. When you need a heading to stand out, consider using a display heading —a larger, slightly more opinionated heading style.

Display 1

Display 2

Display 3

Display 4

<h1 class="display-1">Display 1</h1>
<h1 class="display-2">Display 2</h1>
<h1 class="display-3">Display 3</h1>
<h1 class="display-4">Display 4</h1>

Body copy

Bootstrap's global default font-size is 16px, with a line-height of 24px. This is applied to the <body> and all paragraphs. In addition, <p> (paragraphs) receive a bottom margin of their full line-height (24px by default).

Nullam quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Nullam id dolor id nibh ultricies vehicula.

Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec ullamcorper nulla non metus auctor fringilla. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Donec ullamcorper nulla non metus auctor fringilla.

Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit.

<p>...</p>

Lead body copy

Make a paragraph stand out by adding .lead.

Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Duis mollis, est non commodo luctus.

<p class="lead">...</p>

Built with Less

The typographic scale is based on two Less variables in variables.less: @font-size-base and @line-height-base. The first is the base font-size used throughout and the second is the base line-height. We use those variables and some simple math to create the margins, paddings, and line-heights of all our type and more. Customize them and Bootstrap adapts.

Inline text elements

Marked text

For highlighting a run of text due to its relevance in another context, use the <mark> tag.

You can use the mark tag to highlight text.

You can use the mark tag to <mark>highlight</mark> text.

Deleted text

For indicating blocks of text that have been deleted use the <del> tag.

~~This line of text is meant to be treated as deleted text.~~

<del>This line of text is meant to be treated as deleted text.</del>

Strikethrough text

For indicating blocks of text that are no longer relevant use the <s> tag.

~~This line of text is meant to be treated as no longer accurate.~~

<s>This line of text is meant to be treated as no longer accurate.</s>

Inserted text

For indicating additions to the document use the <ins> tag.

This line of text is meant to be treated as an addition to the document.

<ins>This line of text is meant to be treated as an addition to the document.</ins>

Underlined text

To underline text use the <u> tag.

This line of text will render as underlined

<u>This line of text will render as underlined</u>

Make use of HTML's default emphasis tags with lightweight styles.

Small text

For de-emphasizing inline or blocks of text, use the <small> tag to set text at 85% the size of the parent. Heading elements receive their own font-size for nested <small> elements.

You may alternatively use an inline element with .small in place of any <small>.

This line of text is meant to be treated as fine print.

<small>This line of text is meant to be treated as fine print.</small>

Bold

For emphasizing a snippet of text with a heavier font-weight.

The following snippet of text is rendered as bold text.

<strong>rendered as bold text</strong>

Italics

For emphasizing a snippet of text with italics.

The following snippet of text is rendered as italicized text.

<em>rendered as italicized text</em>

Alternate elements

Feel free to use <b> and <i> in HTML5. <b> is meant to highlight words or phrases without conveying additional importance while <i> is mostly for voice, technical terms, etc.

Alignment classes

Easily realign text to components with text alignment classes.

Left aligned text.

Center aligned text.

Right aligned text.

Justified text.

No wrap text.

<p class="text-xs-left">Left aligned text.</p>
<p class="text-xs-center">Center aligned text.</p>
<p class="text-xs-right">Right aligned text.</p>
<p class="text-xs-justify">Justified text.</p>
<p class="text-xs-nowrap">No wrap text.</p>

For text that only aligns above a given break point use the appropriate modifier.

Text right on extra small grids.

Text right on small grids.

Text right on medium grids.

Text right on large grids.

Text right on extra large grids.

<p class="text-xs-right">Text right on extra small grids.</p>
<p class="text-sm-right">Text right on small grids.</p>
<p class="text-md-right">Text right on medium grids.</p>
<p class="text-lg-right">Text right on large grids.</p>
<p class="text-xl-right">Text right on extra large grids.</p>

Transformation classes

Transform text in components with text capitalization classes.

Lowercased text.

Uppercased text.

Capitalized text.

<p class="text-lowercase">Lowercased text.</p>
<p class="text-uppercase">Uppercased text.</p>
<p class="text-capitalize">Capitalized text.</p>

Abbreviations

Stylized implementation of HTML's <abbr> element for abbreviations and acronyms to show the expanded version on hover. Abbreviations with a title attribute have a light dotted bottom border and a help cursor on hover, providing additional context on hover and to users of assistive technologies.

Basic abbreviation

An abbreviation of the word attribute is attr.

<abbr title="attribute">attr</abbr>

Initialism

Add .initialism to an abbreviation for a slightly smaller font-size.

HTML is the best thing since sliced bread.

<abbr title="HyperText Markup Language" class="initialism">HTML</abbr>

Addresses

Present contact information for the nearest ancestor or the entire body of work. Preserve formatting by ending all lines with <br>.

Twitter, Inc.
795 Folsom Ave, Suite 600
San Francisco, CA 94107
P: (123) 456-7890

Full Name
first.last@example.com

<address>
  <strong>Twitter, Inc.</strong><br>
  795 Folsom Ave, Suite 600<br>
  San Francisco, CA 94107<br>
  <abbr title="Phone">P:</abbr> (123) 456-7890
</address>

<address>
  <strong>Full Name</strong><br>
  <a href="mailto:#">first.last@example.com</a>
</address>

Blockquotes

For quoting blocks of content from another source within your document.

Default blockquote

Wrap <blockquote> around any HTML as the quote. For straight quotes, we recommend a <p>.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

<blockquote>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
</blockquote>

Blockquote options

Style and content changes for simple variations on a standard <blockquote>.

Naming a source

Add a <footer> for identifying the source. Wrap the name of the source work in <cite>.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

<blockquote>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
  <footer>Someone famous in <cite title="Source Title">Source Title</cite></footer>
</blockquote>

Alternate displays

Add .blockquote-reverse for a blockquote with right-aligned content.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Someone famous in Source Title

<blockquote class="blockquote-reverse">
  ...
</blockquote>

Lists

Unordered

A list of items in which the order does not explicitly matter.

Lorem ipsum dolor sit amet
Consectetur adipiscing elit
Integer molestie lorem at massa
Facilisis in pretium nisl aliquet
Nulla volutpat aliquam velit
- Phasellus iaculis neque
- Purus sodales ultricies
- Vestibulum laoreet porttitor sem
- Ac tristique libero volutpat at
Faucibus porta lacus fringilla vel
Aenean sit amet erat nunc
Eget porttitor lorem

<ul>
  <li>...</li>
</ul>

Ordered

A list of items in which the order does explicitly matter.

Lorem ipsum dolor sit amet
Consectetur adipiscing elit
Integer molestie lorem at massa
Facilisis in pretium nisl aliquet
Nulla volutpat aliquam velit
Faucibus porta lacus fringilla vel
Aenean sit amet erat nunc
Eget porttitor lorem

<ol>
  <li>...</li>
</ol>

Unstyled

Remove the default list-style and left margin on list items (immediate children only). This only applies to immediate children list items, meaning you will need to add the class for any nested lists as well.

Lorem ipsum dolor sit amet
Consectetur adipiscing elit
Integer molestie lorem at massa
Facilisis in pretium nisl aliquet
Nulla volutpat aliquam velit
- Phasellus iaculis neque
- Purus sodales ultricies
- Vestibulum laoreet porttitor sem
- Ac tristique libero volutpat at
Faucibus porta lacus fringilla vel
Aenean sit amet erat nunc
Eget porttitor lorem

<ul class="list-unstyled">
  <li>...</li>
</ul>

Inline

Place all list items on a single line with display: inline-block; and some light padding.

Lorem ipsum
Phasellus iaculis
Nulla volutpat

<ul class="list-inline">
  <li>...</li>
</ul>

Description

A list of terms with their associated descriptions.

Description lists: A description list is perfect for defining terms.
Euismod: Vestibulum id ligula porta felis euismod semper eget lacinia odio sem nec elit.; Donec id elit non mi porta gravida at eget metus.
Malesuada porta: Etiam porta sem malesuada magna mollis euismod.

<dl>
  <dt>...</dt>
  <dd>...</dd>
</dl>

Horizontal description

Make terms and descriptions in <dl> line up side-by-side. Starts off stacked like default <dl>s, but when the navbar expands, so do these.

Description lists: A description list is perfect for defining terms.
This is a very long title for a value, it's here to demonstrate wrapping.: Quite cool, no?
IBAN: DE89 3704 0044 0532 0130 00
Recipient gets: 1,000,000 USD
Sending via: Slack

  <dl class="dl-horizontal">
    <dt>...</dt>
    <dd>...</dd>
    <dt>...</dt>
    <dd>...</dd>
  </dl>

Auto-truncating

Horizontal description lists will truncate terms that are too long to fit in the left column with text-overflow. In narrower viewports, they will change to the default stacked layout.

Horizontal description item

Make terms and descriptions in <dl> line up side-by-side. Has to be used as single items, not in big definition lists. Differs from regular horizontal description, as:

it never stacks
overflow is not truncated, but wrapped
values are right-aligned

Description lists: A description list is perfect for defining terms.

This is a very long title for a value, it's here to demonstrate wrapping.: Quite cool, no?

IBAN: DE89 3704 0044 0532 0130 00

Recipient gets: 1,000,000 USD

Sending via: Slack

<dl class="dl-horizontal-item">
  <dt>...</dt>
  <dd>...</dd>
</dl>
<dl class="dl-horizontal-item">
  <dt>...</dt>
  <dd>...</dd>
</dl>

Description Columns

Use grids to align definitions in columns.

Label: A definition

Label: A definition

Label: A definition

Label: A definition

<div class="row">
  <dl class="col-sm-6">
    <dt>...</dt>
    <dd>...</dd>
  </dl>
  <dl class="col-sm-6">
    <dt>...</dt>
    <dd>...</dd>
  </dl>
</div>

Inline

Wrap inline snippets of code with <code>.

For example, <section> should be wrapped as inline.

For example, <code>&lt;section&gt;</code> should be wrapped as inline.

User input

Use the <kbd> to indicate input that is typically entered via keyboard.

To switch directories, type cd followed by the name of the directory.
To edit settings, press ctrl + ,

To switch directories, type <kbd>cd</kbd> followed by the name of the directory.<br>
To edit settings, press <kbd><kbd>ctrl</kbd> + <kbd>,</kbd></kbd>

Basic block

Use <pre> for multiple lines of code. Be sure to escape any angle brackets in the code for proper rendering.

<p>Sample text here...</p>

<pre>&lt;p&gt;Sample text here...&lt;/p&gt;</pre>

You may optionally add the .pre-scrollable class, which will set a max-height of 350px and provide a y-axis scrollbar.

Variables

For indicating variables use the <var> tag.

y = mx + b

<var>y</var> = <var>m</var><var>x</var> + <var>b</var>

Sample output

For indicating blocks sample output from a program use the <samp> tag.

This text is meant to be treated as sample output from a computer program.

<samp>This text is meant to be treated as sample output from a computer program.</samp>

Basic example

For basic styling—light padding and only horizontal dividers—add the base class .table to any <table>. It may seem super redundant, but given the widespread use of tables for other plugins like calendars and date pickers, we've opted to isolate our custom table styles.

Optional table caption.
#	First Name	Last Name	Username
1	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry	the Bird	@twitter

<table class="table">
  ...
</table>

Striped rows

Use .table-striped to add zebra-striping to any table row within the <tbody>.

Cross-browser compatibility

Striped tables are styled via the :nth-child CSS selector, which is not available in Internet Explorer 8.

#	First Name	Last Name	Username
1	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry	the Bird	@twitter

<table class="table table-striped">
  ...
</table>

Bordered table

Add .table-bordered for borders on all sides of the table and cells.

#	First Name	Last Name	Username
1	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry	the Bird	@twitter

<table class="table table-bordered">
  ...
</table>

Hover rows

Add .table-hover to enable a hover state on table rows within a <tbody>.

#	First Name	Last Name	Username
1	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry	the Bird	@twitter

<table class="table table-hover">
  ...
</table>

Condensed table

Add .table-condensed to make tables more compact by cutting cell padding in half.

#	First Name	Last Name	Username
1	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry the Bird		@twitter

<table class="table table-condensed">
  ...
</table>

Contextual classes

Use contextual classes to color table rows or individual cells.

Class	Description
`.active`	Applies the hover color to a particular row or cell
`.success`	Indicates a successful or positive action
`.info`	Indicates a neutral informative change or action
`.warning`	Indicates a warning that might need attention
`.danger`	Indicates a dangerous or potentially negative action

#	Column heading	Column heading	Column heading
1	Column content	Column content	Column content
2	Column content	Column content	Column content
3	Column content	Column content	Column content
4	Column content	Column content	Column content
5	Column content	Column content	Column content
6	Column content	Column content	Column content
7	Column content	Column content	Column content
8	Column content	Column content	Column content
9	Column content	Column content	Column content
10	Column content	Column content	Column content
11	Column content	Column content	Column content
12	Column content	Column content	Column content
13	Column content	Column content	Column content

<!-- On rows -->
<tr class="active">...</tr>
<tr class="primary">...</tr>
<tr class="success">...</tr>
<tr class="warning">...</tr>
<tr class="danger">...</tr>
<tr class="info">...</tr>
<tr class="default">...</tr>

<!-- On cells (`td` or `th`) -->
<tr>
  <td class="active">...</td>
  <tr class="primary">...</tr>
  <td class="success">...</td>
  <td class="warning">...</td>
  <td class="danger">...</td>
  <td class="info">...</td>
  <td class="default">...</td>
</tr>

Conveying meaning to assistive technologies

Using color to add meaning to a table row or individual cell only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (the visible text in the relevant table row/cell), or is included through alternative means, such as additional text hidden with the .sr-only class.

Responsive tables

Create responsive tables by wrapping any .table in .table-responsive to make them scroll horizontally on small devices (under 768px). When viewing on anything larger than 768px wide, you will not see any difference in these tables.

Responsive bordered tables

When using .table-responsive with a bordered table you must apply the .table-bordered class to both the .table-responsive container and the nested .table.

Vertical clipping/truncation

Responsive tables make use of overflow-y: hidden, which clips off any content that goes beyond the bottom or top edges of the table. In particular, this can clip off dropdown menus and other third-party widgets.

Firefox and fieldsets

Firefox has some awkward fieldset styling involving width that interferes with the responsive table. This cannot be overriden without a Firefox-specific hack that we don't provide in Bootstrap:

@-moz-document url-prefix() {
  fieldset { display: table-cell; }
}

For more information, read this Stack Overflow answer.

#	Table heading	Table heading	Table heading	Table heading	Table heading	Table heading
1	Table cell	Table cell	Table cell	Table cell	Table cell	Table cell
2	Table cell	Table cell	Table cell	Table cell	Table cell	Table cell
3	Table cell	Table cell	Table cell	Table cell	Table cell	Table cell

#	Table heading	Table heading	Table heading	Table heading	Table heading	Table heading
1	Table cell	Table cell	Table cell	Table cell	Table cell	Table cell
2	Table cell	Table cell	Table cell	Table cell	Table cell	Table cell
3	Table cell	Table cell	Table cell	Table cell	Table cell	Table cell

<div class="table-responsive">
  <table class="table">
    ...
  </table>
</div>

<div class="table-responsive table-bordered">
  <table class="table table-bordered">
    ...
  </table>
</div>

Calendar tables

Used for rendering the days in a month, or months in a year.

Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30

<table class="table table-calendar table-bordered table-condensed">
  <thead>
    <tr>
      <th>Mon</th>
      <th>Tue</th>
      <th>Wed</th>
      ...
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a href="" disabled>1</a></td>
      <td><a href="" class="active">1</a></td>
      <td><a href="">2</a></td>
      ...
    </tr>
  </tbody>
</table>

Description list tables

A mobile first table variant that uses description lists within cards on mobile widths (xs and sm grid widths), and regular table styles when wider.

The description list tables can be used with the other table modifier classes: .table-bordered, .table-striped, .table-hover, .table-condensed. You may also wrap the table in a .table-responsive in case your table may not fit on tablet widths.

Heading 1
Heading 2
Heading 3

Heading 1: Text 1
Heading 2: Text 2
Heading 3: Text 3

Heading 1: Text 1
Heading 2: Text 2
Heading 3: Text 3

<div class="table table-bordered" role="grid">
  <div class="thead" role="rowgroup">
    <ol role="row">
      <li role="columnheader">Heading 1</li>
      <li role="columnheader">Heading 2</li>
      <li role="columnheader">Heading 3</li>
    </ol>
  </div>
  <div class="tbody" role="rowgroup">
    <dl role="row">
      <dt>Heading 1</dt>
      <dd role="gridcell">Text 1</dd>
      <dt>Heading 2</dt>
      <dd role="gridcell">Text 2</dd>
      <dt>Heading 3</dt>
      <dd role="gridcell">Text 3</dd>
    </dl>
    <dl role="row">...</dl>
  </div>
</div>

Basic example

Individual form controls automatically receive some global styling. All textual <input>, <textarea>, and <select> elements with .form-control are set to width: 100%; by default. Wrap labels and controls in .form-group for optimum spacing.

<form>
  <div class="row">
    <div class="form-group col-sm-6">
      <label for="exampleInputEmail1">Email address</label>
      <input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email">
    </div>
    <div class="form-group col-sm-6">
      <label for="exampleInputPassword1">Password</label>
      <input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
      <p class="help-block">Example block-level help text here.</p>
    </div>
    <div class="form-group col-sm-6">
      <label>Checkbox label</label>
      <div class="checkbox">
        <label>
          <input type="checkbox"> Check me out
        </label>
      </div>
    </div>
  </div>
  <div class="row">
    <div class="col-sm-6">
        <button type="submit" class="btn btn-primary btn-block">Submit</button>
    </div>
  </div>
</form>

Don't mix form groups with input groups

Do not mix form groups directly with input groups. Instead, nest the input group inside of the form group.

Inline form

Add .form-inline to your form (which doesn't have to be a <form>) for left-aligned and inline-block controls. This only applies to forms within viewports that are at least 768px wide.

May require custom widths

Inputs and selects have width: 100%; applied by default in Bootstrap. Within inline forms, we reset that to width: auto; so multiple controls can reside on the same line. Depending on your layout, additional custom widths may be required.

Always add labels

Screen readers will have trouble with your forms if you don't include a label for every input. For these inline forms, you can hide the labels using the .sr-only class. There are further alternative methods of providing a label for assistive technologies, such as the aria-label, aria-labelledby or title attribute. If none of these is present, screen readers may resort to using the placeholder attribute, if present, but note that use of placeholder as a replacement for other labelling methods is not advised.

<form class="form-inline">
  <div class="form-group">
    <label for="exampleInputName2" class="control-label">Name</label>
    <input type="text" class="form-control" id="exampleInputName2" placeholder="Jane Doe">
  </div>
  <div class="form-group">
    <label for="exampleInputEmail2" class="control-label">Email</label>
    <input type="email" class="form-control" id="exampleInputEmail2" placeholder="jane.doe@example.com">
  </div>
  <button type="submit" class="btn btn-default">Send invitation</button>
</form>

<form class="form-inline">
  <div class="form-group">
    <label class="sr-only" for="exampleInputEmail3">Email address</label>
    <input type="email" class="form-control" id="exampleInputEmail3" placeholder="Email">
  </div>
  <div class="form-group">
    <label class="sr-only" for="exampleInputPassword3">Password</label>
    <input type="password" class="form-control" id="exampleInputPassword3" placeholder="Password">
  </div>
  <button type="submit" class="btn btn-default">Sign in</button>
</form>

<form class="form-inline">
  <div class="form-group">
    <label class="sr-only" for="exampleInputAmount">Amount (in dollars)</label>
    <div class="input-group">
      <div class="input-group-addon">$</div>
      <input type="text" class="form-control" id="exampleInputAmount" placeholder="Amount">
      <div class="input-group-addon">.00</div>
    </div>
  </div>
  <button type="submit" class="btn btn-primary">Transfer cash</button>
</form>

Supported controls

Examples of standard form controls supported in an example form layout.

Inputs

Most common form control, text-based input fields. Includes support for all HTML5 types: text, password, datetime, datetime-local, date, month, time, week, number, email, url, search, tel, and color.

Type declaration required

Inputs will only be fully styled if their type is properly declared.

<input type="text" class="form-control" placeholder="Text input">

Input groups

To add integrated text or buttons before and/or after any text-based <input>, check out the input group component.

Textarea

Form control which supports multiple lines of text. Change rows attribute as necessary.

<textarea class="form-control" rows="3"></textarea>

Checkboxes and radios

Checkboxes are for selecting one or several options in a list, while radios are for selecting one option from many.

A checkbox or radio with the disabled attribute will be styled appropriately. To have the <label> for the checkbox or radio also display a "not-allowed" cursor when the user hovers over the label, add the .disabled class to your .radio, .radio-inline, .checkbox, .checkbox-inline, or <fieldset>.

Default (stacked)

<div class="checkbox">
  <label>
    <input type="checkbox" value="">
    Option one is this and that&mdash;be sure to include why it's great
  </label>
</div>
<div class="checkbox disabled">
  <label>
    <input type="checkbox" value="" disabled>
    Option two is disabled
  </label>
</div>

<div class="radio">
  <label>
    <input type="radio" name="optionsRadios" id="optionsRadios1" value="option1" checked>
    Option one is this and that&mdash;be sure to include why it's great
  </label>
</div>
<div class="radio">
  <label>
    <input type="radio" name="optionsRadios" id="optionsRadios2" value="option2">
    Option two can be something else and selecting it will deselect option one
  </label>
</div>
<div class="radio disabled">
  <label>
    <input type="radio" name="optionsRadios" id="optionsRadios3" value="option3" disabled>
    Option three is disabled
  </label>
</div>

Custom checkboxes and radios

We provide styles for custom checkbox and radio replacements. These are styles only, for an implementation in Angular 1.x refer to our styleguide-components repository.

Custom checkbox

Checkbox classes & styles
`.tw-checkbox-button`
`.tw-checkbox-button:focus`
`.tw-checkbox-button.checked`
`.tw-checkbox-button[disabled]`
`.tw-checkbox-button.checked[disabled]`
`.tw-checkbox-button.has-error`
`.tw-checkbox-button.has-error.checked`
`.tw-checkbox-button.has-error.checked[disabled]`

<button class="tw-checkbox-button">
  <span class="tw-checkbox-check glyphicon glyphicon-ok"></span>
</button>

Custom radio

Radio & styles
`.tw-radio-button`
`.tw-radio-button:focus`
`.tw-radio-button.checked`
`.tw-radio-button[disabled]`
`.tw-radio-button.checked[disabled]`
`.tw-radio-button.has-error`
`.tw-radio-button.has-error.checked`
`.tw-radio-button.has-error.checked[disabled]`

<button class="tw-radio-button">
  <span class="tw-radio-check"></span>
</button>

Two line checkbox and radio

Add the .checkbox-lg or .radio-lg to utilise a two line form control. Use small to position the second line of text.

<div class="checkbox checkbox-lg m-b-2">
  <label>
    <input type="checkbox" value="">
    Important information
    <small>Subsequent information</small>
  </label>
</div>
<div class="radio radio-lg">
  <label>
    <input type="radio" value="">
    Important information
    <small>Subsequent information</small>
  </label>
</div>

Inline checkboxes and radios

Use the .checkbox-inline or .radio-inline classes on a series of checkboxes or radios for controls that appear on the same line.

<label class="checkbox-inline">
  <input type="checkbox" id="inlineCheckbox1" value="option1"> 1
</label>
<label class="checkbox-inline">
  <input type="checkbox" id="inlineCheckbox2" value="option2"> 2
</label>
<label class="checkbox-inline">
  <input type="checkbox" id="inlineCheckbox3" value="option3"> 3
</label>

<label class="radio-inline">
  <input type="radio" name="inlineRadioOptions" id="inlineRadio1" value="option1"> 1
</label>
<label class="radio-inline">
  <input type="radio" name="inlineRadioOptions" id="inlineRadio2" value="option2"> 2
</label>
<label class="radio-inline">
  <input type="radio" name="inlineRadioOptions" id="inlineRadio3" value="option3"> 3
</label>

Checkboxes and radios without label text

Should you have no text within the <label>, the input is positioned as you'd expect. Currently only works on non-inline checkboxes and radios. Remember to still provide some form of label for assistive technologies (for instance, using aria-label).

<div class="checkbox">
  <label>
    <input type="checkbox" id="blankCheckbox" value="option1" aria-label="...">
  </label>
</div>
<div class="radio">
  <label>
    <input type="radio" name="blankRadio" id="blankRadio1" value="option1" aria-label="...">
  </label>
</div>

Selects

Note that many native select menus—namely in Safari and Chrome—have rounded corners that cannot be modified via border-radius properties.

<select class="form-control">
  <option>1</option>
  <option>2</option>
  <option>3</option>
  <option>4</option>
  <option>5</option>
</select>

Static control

When you need to place plain text next to a form label within a form, use the .form-control-static class on a <p>.

<form class="form-horizontal">
  <div class="form-group">
    <label class="col-sm-2 control-label">Email</label>
    <div class="col-sm-10">
      <p class="form-control-static">email@example.com</p>
    </div>
  </div>
  <div class="form-group">
    <label for="inputPassword" class="col-sm-2 control-label">Password</label>
    <div class="col-sm-10">
      <input type="password" class="form-control" id="inputPassword" placeholder="Password">
    </div>
  </div>
</form>

<form class="form-inline">
  <div class="form-group">
    <label class="sr-only">Email</label>
    <p class="form-control-static">email@example.com</p>
  </div>
  <div class="form-group">
    <label for="inputPassword2" class="sr-only">Password</label>
    <input type="password" class="form-control" id="inputPassword2" placeholder="Password">
  </div>
  <button type="submit" class="btn btn-default">Confirm identity</button>
</form>

Focus state

We remove the default outline styles on some form controls and apply a box-shadow in its place for :focus.

Demo `:focus` state

The above example input uses custom styles in our documentation to demonstrate the :focus state on a .form-control.

Disabled state

Add the disabled boolean attribute on an input to prevent user interactions. Disabled inputs appear lighter and add a not-allowed cursor.

<input class="form-control" id="disabledInput" type="text" placeholder="Disabled input here..." disabled>

Disabled fieldsets

Add the disabled attribute to a <fieldset> to disable all the controls within the <fieldset> at once.

Caveat about link functionality of `<a>`

By default, browsers will treat all native form controls (<input>, <select> and <button> elements) inside a <fieldset disabled> as disabled, preventing both keyboard and mouse interactions on them. However, if your form also includes <a ... class="btn btn-*"> elements, these will only be given a style of pointer-events: none. As noted in the section about disabled state for buttons (and specifically in the sub-section for anchor elements), this CSS property is not yet standardized and isn't fully supported in Opera 18 and below, or in Internet Explorer 11, and won't prevent keyboard users from being able to focus or activate these links. So to be safe, use custom JavaScript to disable such links.

Cross-browser compatibility

While Bootstrap will apply these styles in all browsers, Internet Explorer 11 and below don't fully support the disabled attribute on a <fieldset>. Use custom JavaScript to disable the fieldset in these browsers.

<form>
  <fieldset disabled>
    <div class="form-group">
      <label for="disabledTextInput">Disabled input</label>
      <input type="text" id="disabledTextInput" class="form-control" placeholder="Disabled input">
    </div>
    <div class="form-group">
      <label for="disabledSelect">Disabled select menu</label>
      <select id="disabledSelect" class="form-control">
        <option>Disabled select</option>
      </select>
    </div>
    <div class="checkbox">
      <label>
        <input type="checkbox"> Can't check this
      </label>
    </div>
    <button type="submit" class="btn btn-primary">Submit</button>
  </fieldset>
</form>

Readonly state

Add the readonly boolean attribute on an input to prevent modification of the input's value. Read-only inputs appear lighter (just like disabled inputs), but retain the standard cursor.

<input class="form-control" type="text" placeholder="Readonly input here…" readonly>

Validation states

Bootstrap includes validation styles for error, warning, and success states on form controls. To use, add .has-warning, .has-error, or .has-success to the parent element. Any .control-label and .form-control within that element will receive the validation styles.

Conveying validation state to assistive technologies and colorblind users

Using these validation styles to denote the state of a form control only provides a visual, color-based indication, which will not be conveyed to users of assistive technologies - such as screen readers - or to colorblind users.

Ensure that an alternative indication of state is also provided. For instance, you can include a hint about state in the form control's <label> text itself (as is the case in the following code example), include a icon (with appropriate alternative text using the .sr-only class - see the icon examples), or by providing an additional help text block. Specifically for assistive technologies, invalid form controls can also be assigned an aria-invalid="true" attribute.

<div class="form-group has-focus">
  <label class="control-label" for="inputHelp1">
    Input with help-block
  </label>
  <input type="text" class="form-control" id="inputHelp1" />
</div>
<div class="form-group has-info">
  <label class="control-label" for="inputInfo1">
    Input with has-info
  </label>
  <input type="text" class="form-control" id="inputInfo1" />
</div>
<div class="form-group has-success">
  <label class="control-label" for="inputSuccess1">
    Input with has-success
  </label>
  <input type="text" class="form-control" id="inputSuccess1" />
</div>
<div class="form-group has-warning">
  <label class="control-label" for="inputWarning1">
    Input with has-warning
  </label>
  <input type="text" class="form-control" id="inputWarning1" />
</div>
<div class="form-group has-error">
  <label class="control-label" for="inputError1">
    Input with has-error
  </label>
  <input type="text" class="form-control" id="inputError1"
    aria-invalid="true" />
</div>

Validation messaging

Combine validation states with alerts to provide a lock up between messaging and state.

Only the matching alert is shown at any time, so for example, if your form-group .has-warning only the .alert-warning will be visible.

A special .alert-focus is available for the .has-focus state.

<div class="form-group has-info">
  <label class="control-label" for="inputInfo">
    Input with info block
  </label>
  <input type="text" class="form-control" id="inputInfo"
    aria-describedby="infoFeedback">
  <div class="alert alert-info" id="infoFeedback">
    Info block
  </div>
</div>

<div class="form-group has-warning">
  <label class="control-label" for="inputWarning">
    Input with warning
  </label>
  <input type="text" class="form-control" id="inputWarning"
    aria-describedby="warningFeedback">
  <div class="alert alert-warning" id="warningFeedback">
    Warning block
  </div>
</div>

<div class="form-group has-error">
  <label class="control-label" for="inputError1">
    Input with error
  </label>
  <div class="btn-group btn-block"
    aria-describedby="errorFeedback"
    aria-invalid="true">...</div>
  <div class="alert alert-danger" id="errorFeedback">
    Error block
  </div>
</div>

Detached feedback

In some cases, we have multiple controls in a line, so the feedback needs to be detached from the element, use the .detach-feedback modifier on the form-group.

<div class="form-group has-focus detach-feedback">
  <label class="control-label">Input with info</label>
  <div class="input-group">
    <input type="text" class="form-control"
      aria-describedby="detached-help-feedback">
    <div class="input-group-btn">
      <button class="btn btn-addon">Go</button>
    </div>
  </div>
  <div class="alert alert-focus alert-detach" id="detached-help-feedback">Detached focus block</div>
</div>

<div class="form-group has-error">
  <label class="control-label">Input with detached error</label>
  <div class="row">
    <div class="col-xs-4">
      <input type="text" class="form-control"
        aria-describedby="detached-error-feedback">
    </div>
    <div class="col-xs-4">
      <input type="text" class="form-control">
    </div>
    <div class="col-xs-4">
      <input type="text" class="form-control">
    </div>
  </div>
  <div class="alert alert-danger alert-detach arrow" id="detached-error-feedback">Detached error alert</div>
</div>

Feedback with Radio and Checkboxes

With radio buttons and checkboxes, validation could relate to the set of controls or to a specific control. Place the alert as a child of the .form-group to provide feedback on the set of controls. Place it inside the .radio or .checkbox element to provide feedback on just one control.

Apply the validation state to the appropriate parent e.g. if validating all controls, apply .has-error to the .form-group, if validating a checkbox, apply .has-error to the .checkbox.

Typically, radio button feedback will refer to the full set of controls, while checkbox feedback is likely to relate to a single control.

Choose

Checkbox

Checkbox with error

Error block

Choose

Radio with error

Error block

<div class="form-group">
  <label class="control-label">Choose</label>
  <div class="checkbox">
    <label>
        <button class="tw-checkbox-button">...</button>
        Checkbox
    </label>
  </div>
  <div class="checkbox has-error">
    <label>
        <button class="tw-checkbox-button">...</button>
        Checkbox with error
    </label>
    <div class="alert alert-danger">Error block</div>
  </div>
</div>

<div class="form-group has-error">
  <label class="control-label">Choose</label>
  <div class="radio">
    <label>
        <button class="tw-radio-button">...</button>
        Radio with error
    </label>
  </div>
  <div class="radio">
    <label>
        <button class="tw-radio-button"></button>
        Radio with error
    </label>
  </div>
  <div class="alert alert-danger">Error block</div>
</div>

Control sizing

Set heights using classes like .input-lg, and set widths using grid column classes like .col-lg-*.

Height sizing

Create taller or shorter form controls that match button sizes.

<input class="form-control input-lg" type="text" placeholder=".input-lg">
<input class="form-control" type="text" placeholder="Default input">
<input class="form-control input-sm" type="text" placeholder=".input-sm">

<select class="form-control input-lg">...</select>
<select class="form-control">...</select>
<select class="form-control input-sm">...</select>

Column sizing

Wrap inputs in grid columns, or any custom parent element, to easily enforce desired widths.

<div class="form-group">
  <div class="row">
    <div class="col-sm-2">
      <input type="text" class="form-control" placeholder=".col-sm-2">
    </div>
    <div class="col-sm-3">
      <input type="text" class="form-control" placeholder=".col-sm-3">
    </div>
    <div class="col-sm-4">
      <input type="text" class="form-control" placeholder=".col-sm-4">
    </div>
  </div>
</div>

Help text

Block level, stateful messages.

<div id="helpBlock" class="help-block">...</div>

Associating help text with form controls

Help text should be explicitly associated with the form control it relates to using the aria-describedby attribute. This will ensure that assistive technologies – such as screen readers – will announce this help text when the user focuses or enters the control.

<div class="form-group has-focus">
  <label class="sr-only" for="inputHelpWithBlock">Input with help text</label>
  <input type="text" id="inputHelpWithBlock" class="form-control"
    aria-describedby="inputHelpBlock" />
  <span id="inputHelpBlock" class="help-block">...</span>
</div>

Button tags

Use the button classes on an <a>, <button>, or <input> element.

<a class="btn btn-default" href="#" role="button">Link</a>
<button class="btn btn-default" type="submit">Button</button>
<input class="btn btn-default" type="button" value="Input">
<input class="btn btn-default" type="submit" value="Submit">

Context-specific usage

While button classes can be used on <a> and <button> elements, only <button> elements are supported within our nav and navbar components.

Links acting as buttons

If the <a> elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate role="button".

Cross-browser rendering

As a best practice, we highly recommend using the <button> element whenever possible to ensure matching cross-browser rendering.

Among other things, there's a bug in Firefox <30 that prevents us from setting the line-height of <input>-based buttons, causing them to not exactly match the height of other buttons on Firefox.

Options

Use any of the available button classes to quickly create a styled button.

<!-- Provides extra visual weight and identifies the primary action in a set of buttons -->
<button type="button" class="btn btn-primary">Primary</button>

<!-- Indicates a successful or positive action -->
<button type="button" class="btn btn-success">Success</button>

<!-- Indicates a successful or positive action -->
<button type="button" class="btn btn-addon">Addon</button>

<!-- Standard button -->
<button type="button" class="btn btn-default">Default</button>

<!-- Contextual button for informational alert messages -->
<button type="button" class="btn btn-info">Info</button>

<!-- Indicates caution should be taken with this action -->
<button type="button" class="btn btn-warning">Warning</button>

<!-- Indicates a dangerous or potentially negative action -->
<button type="button" class="btn btn-danger">Danger</button>

<!-- Deemphasize a button by making it look like a link while maintaining button behavior -->
<button type="button" class="btn btn-link">Link</button>

<!--  Special button for logging in with Google -->
<button type="button" class="btn btn-google">Login with Google</button>

<!-- Special button for logging in with Facebook -->
<button type="button" class="btn btn-facebook">Login with Facebook</button>

<!-- Special button for downloading the iOS app -->

<button type="button" class="btn btn-download">
  <img class="icon-download" src="https://daw291njkc3ao.cloudfront.net/conversion/ic_logo_apple.svg" alt="Apple Logo">
  <div class="btn-download-inner">
    <span class="small">Download on the</span>
    <span class="h2">App Store</span>
  </div>
</button>

<!-- Special button for downloading the Android app -->
<button type="button" class="btn btn-download">
  <img class="icon-download" src="https://daw291njkc3ao.cloudfront.net/conversion/ic_logo_google_play.svg" alt="Google Play Logo">
  <div class="btn-download-inner">
    <span class="small">Get it on</span>
    <span class="h2">Google Play</span>
  </div>
</button>

Conveying meaning to assistive technologies

Using color to add meaning to a button only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (the visible text of the button), or is included through alternative means, such as additional text hidden with the .sr-only class.

Sizes

Fancy larger or smaller buttons? Add .btn-lg, .btn-sm, or .btn-xs for additional sizes.

<p>
  <button type="button" class="btn btn-primary btn-lg">Large button</button>
  <button type="button" class="btn btn-default btn-lg">Large button</button>
</p>
<p>
  <button type="button" class="btn btn-primary">Default button</button>
  <button type="button" class="btn btn-default">Default button</button>
</p>
<p>
  <button type="button" class="btn btn-primary btn-sm">Small button</button>
  <button type="button" class="btn btn-default btn-sm">Small button</button>
</p>
<p>
  <button type="button" class="btn btn-primary btn-xs">Extra small button</button>
  <button type="button" class="btn btn-default btn-xs">Extra small button</button>
</p>

Create block level buttons—those that span the full width of a parent— by adding .btn-block.

<button type="button" class="btn btn-primary btn-lg btn-block">Block level button</button>
<button type="button" class="btn btn-default btn-lg btn-block">Block level button</button>
<button type="button" class="btn btn-facebook btn-lg btn-block">Login with Facebook</button>

Active state

Buttons will appear pressed (with a darker background, darker border, and inset shadow) when active. For <button> elements, this is done via :active. For <a> elements, it's done with .active. However, you may use .active on <button>s (and include the aria-pressed="true" attribute) should you need to replicate the active state programmatically.

Button element

No need to add :active as it's a pseudo-class, but if you need to force the same appearance, go ahead and add .active.

<button type="button" class="btn btn-primary btn-lg active">Primary button</button>
<button type="button" class="btn btn-default btn-lg active">Button</button>

Anchor element

Add the .active class to <a> buttons.

Primary link Link

<a href="#" class="btn btn-primary btn-lg active" role="button">Primary link</a>
<a href="#" class="btn btn-default btn-lg active" role="button">Link</a>

Disabled state

Make buttons look unclickable by fading them back with opacity.

Button element

Add the disabled attribute to <button> buttons.

<button type="button" class="btn btn-lg btn-primary" disabled="disabled">Primary button</button>
<button type="button" class="btn btn-default btn-lg" disabled="disabled">Button</button>

Cross-browser compatibility

If you add the disabled attribute to a <button>, Internet Explorer 9 and below will render text gray with a nasty text-shadow that we cannot fix.

Anchor element

Add the .disabled class to <a> buttons.

Primary link Link

<a href="#" class="btn btn-primary btn-lg disabled" role="button">Primary link</a>
<a href="#" class="btn btn-default btn-lg disabled" role="button">Link</a>

We use .disabled as a utility class here, similar to the common .active class, so no prefix is required.

Link functionality caveat

This class uses pointer-events: none to try to disable the link functionality of <a>s, but that CSS property is not yet standardized and isn't fully supported in Opera 18 and below, or in Internet Explorer 11. In addition, even in browsers that do support pointer-events: none, keyboard navigation remains unaffected, meaning that sighted keyboard users and users of assistive technologies will still be able to activate these links. So to be safe, use custom JavaScript to disable such links.

Responsive images

Images in Bootstrap 3 can be made responsive-friendly via the addition of the .img-responsive class. This applies max-width: 100%;, height: auto; and display: block; to the image so that it scales nicely to the parent element.

To center images which use the .img-responsive class, use .center-block instead of .text-xs-center. See the helper classes section for more details about .center-block usage.

SVG images and IE 8-10

In Internet Explorer 8-10, SVG images with .img-responsive are disproportionately sized. To fix this, add width: 100% \9; where necessary. Bootstrap doesn't apply this automatically as it causes complications to other image formats.

<img src="..." class="img-responsive" alt="Responsive image">

Image shapes

Add classes to an <img> element to easily style images in any project.

Cross-browser compatibility

Keep in mind that Internet Explorer 8 lacks support for rounded corners.

A generic square placeholder image with rounded corners

A generic square placeholder image where only the portion within the circle circumscribed about said square is visible

A generic square placeholder image with a white border around it, making it resemble a photograph taken with an old instant camera

<img src="..." alt="..." class="img-rounded">
<img src="..." alt="..." class="img-circle">
<img src="..." alt="..." class="img-thumbnail">

Spacing

Several utility classes are available for spacing.

The classes are named using the format {property}-{sides}-{size}

The property options are:

m - for classes that set margin
p - for classes that set padding

The sides are:

a - for classes that set a margin or padding on all 4 sides of the element
t - for classes that set the top side of the property
b - for classes that set the bottom side of the property
l - for classes that set the left side of the property
r - for classes that set the right side of the property
x - for classes that set both left and right
y - for classes that set both top and bottom

The sizes are:

Our base unit for the spacer is: @spacer: 8px;

0 - for classes that eliminate the margin or padding by setting it to 0
1 - for classes that set the margin or padding to @spacer * 1 (8px)
2 - for classes that set the margin or padding to @spacer * 2 (16px)
3 - for classes that set the margin or padding to @spacer * 3 (24px)
auto - for classes that set the margin to auto

And only for vertical cases:

4 - for classes that set the margin-top, margin-bottom or padding-top, padding-bottom to @spacer * 4 (32px)
5 - for classes that set the margin-top, margin-bottom or padding-top, padding-bottom to @spacer * 5 (40px)

Global clases

<button class="btn m-a-1">.m-a-1</button>
<button class="btn m-a-2">...</button>
<button class="btn p-a-1">.p-a-1</button>
<button class="btn p-a-2">...</button>

Vertical clases

Top

<button class="btn m-t-1">.m-t-1</button>
<button class="btn m-t-2">...</button>
<button class="btn p-t-1">.p-t-1</button>
<button class="btn p-t-2">...</button>

Bottom

<button class="btn m-b-1">.m-b-1</button>
<button class="btn m-b-2">...</button>
<button class="btn p-b-1">.p-b-1</button>
<button class="btn p-b-2">...</button>

Y axis

<button class="btn m-y-1">.m-y-1</button>
<button class="btn m-y-2">...</button>
<button class="btn p-y-1">.p-y-1</button>
<button class="btn p-y-2">...</button>

Horizontal clases

Left

<button class="btn m-l-1">.m-l-1</button>
<button class="btn m-l-2">...</button>
<button class="btn p-l-1">.p-l-1</button>
<button class="btn p-l-2">...</button>

Right

<button class="btn m-r-1">.m-r-1</button>
<button class="btn m-r-2">...</button>
<button class="btn p-r-1">.p-r-1</button>
<button class="btn p-r-2">...</button>

X axis

<button class="btn m-x-1">.m-x-1</button>
<button class="btn m-x-2">...</button>
<button class="btn p-x-1">.p-x-1</button>
<button class="btn p-x-2">...</button>

Responsive sections

These are the sizes of larger, responsive spacing used for separating sections of a page:

section-1 classes provide 16px, 24px or 32px of spacing depending on screen width.
section-2 classes provide 24px, 48px or 64px of spacing depending on screen width.
section-3 classes provide 48px, 72px or 96px of spacing depending on screen width.
section-5 classes provide 80px, 120px or 160px of spacing depending on screen width.
section-7 classes provide 112px, 168px or 224px of spacing depending on screen width.

Keep in mind that we jump 4 and 6 sizes for the moment, because they are not used.

Spacing classes are available for each of the vertical utility classes at each section size e.g.

Top

m-t-section-1

m-t-section-2

m-t-section-3

m-t-section-5

m-t-section-7

p-t-section-1

p-t-section-2

p-t-section-3

p-t-section-5

p-t-section-7

<h6 class="m-t-section-1">m-t-section-1</h6>
<h6 class="m-t-section-2">...</h6>
<h6 class="p-t-section-1">p-t-section-1</h6>
<h6 class="p-t-section-2">...</h6>

Bottom

m-b-section-1

m-b-section-2

m-b-section-3

m-b-section-5

m-b-section-7

p-b-section-1

p-b-section-2

p-b-section-3

p-b-section-5

p-b-section-7

<h6 class="m-b-section-1">m-b-section-1</h6>
<h6 class="m-b-section-2">..</h6>
<h6 class="p-b-section-1">p-b-section-1</h6>
<h6 class="p-b-section-2">..</h6>

Y axis

m-y-section-1

m-y-section-2

m-y-section-3

m-y-section-5

m-y-section-7

p-y-section-1

p-y-section-2

p-y-section-3

p-y-section-5

p-y-section-7

  <h6 class="m-y-section-1">m-y-section-1</h6>
  <h6 class="m-y-section-2">...</h6>

  <h6 class="p-y-section-1">p-y-section-1</h6>
  <h6 class="p-y-section-2">...</h6>

Contextual colors

Convey meaning through color with a handful of emphasis utility classes. These may also be applied to links and will darken on hover just like our default link styles.

Fusce dapibus, tellus ac cursus commodo, tortor mauris nibh.

Nullam id dolor id nibh ultricies vehicula ut id elit.

Duis mollis, est non commodo luctus, nisi erat porttitor ligula.

Maecenas sed diam eget risus varius blandit sit amet non magna.

Etiam porta sem malesuada magna mollis euismod.

Donec ullamcorper nulla non metus auctor fringilla.

Fusce dapibus, tellus ac cursus commodo, tortor mauris nibh.

Nullam id dolor id nibh ultricies vehicula ut id elit.

Duis mollis, est non commodo luctus, nisi erat porttitor ligula.

Maecenas sed diam eget risus varius blandit sit amet non magna.

Etiam porta sem malesuada magna mollis euismod.

Donec ullamcorper nulla non metus auctor fringilla.

<p class="text-muted">...</p>
<p class="text-primary">...</p>
<p class="text-success">...</p>
<p class="text-info">...</p>
<p class="text-warning">...</p>
<p class="text-danger">...</p>

<div class="bg-primary">
  ...
</div>

Dealing with specificity

Sometimes emphasis classes cannot be applied due to the specificity of another selector. In most cases, a sufficient workaround is to wrap your text in a <span> with the class.

Conveying meaning to assistive technologies

Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (the contextual colors are only used to reinforce meaning that is already present in the text/markup), or is included through alternative means, such as additional text hidden with the .sr-only class.

Contextual backgrounds

Similar to the contextual text color classes, easily set the background of an element to any contextual class. Anchor components will darken on hover, just like the text classes.

Nullam id dolor id nibh ultricies vehicula ut id elit.

Ut semper congue tellus nec molestie.

Donec tincidunt magna dapibus sagittis congue. Nunc.

Maecenas sed diam eget risus varius blandit sit amet non magna.

<div class="bg-primary">...</div>
<div class="bg-default">...</div>
<div class="bg-focus">...</div>
<div class="bg-info">...</div>

Dealing with specificity

Sometimes contextual background classes cannot be applied due to the specificity of another selector. In some cases, a sufficient workaround is to wrap your element's content in a <div> with the class.

Conveying meaning to assistive technologies

As with contextual colors, ensure that any meaning conveyed through color is also conveyed in a format that is not purely presentational.

Close icon

Use the generic close icon for dismissing content like modals and alerts.

<button type="button" class="close" aria-label="Close"><span aria-hidden="true">&times;</span></button>

Carets

Use carets to indicate dropdown functionality and direction. Note that the default caret will reverse automatically in dropup menus.

<span class="caret"></span>

Quick floats

Float an element to the left or right with a class. !important is included to avoid specificity issues. Classes can also be used as mixins.

<div class="pull-xs-left">...</div>
<div class="pull-xs-right">...</div>

// Classes
.pull-xs-left {
  float: left !important;
}
.pull-xs-right {
  float: right !important;
}

// Usage as mixins
.element {
  .pull-left();
}
.another-element {
  .pull-right();
}

Responsive floats

Float an element to the left or right only until grid collapse.

.pull-sm-left

.pull-md-left

.pull-lg-left

.pull-xl-left

.pull-sm-right

.pull-md-right

.pull-lg-right

.pull-xl-right

<div class="text-xs-center">
  <div class="pull-sm-left">.pull-sm-left</div>
  <div class="pull-md-left">.pull-md-left</div>
  <div class="pull-lg-left">.pull-lg-left</div>
  <div class="pull-xl-left">.pull-xl-left</div>
  <div class="pull-sm-right">.pull-sm-right</div>
  <div class="pull-md-right">.pull-md-right</div>
  <div class="pull-lg-right">.pull-lg-right</div>
  <div class="pull-xl-right">.pull-xl-right</div>
</div>

Center content blocks

Set an element to display: block and center via margin. Available as a mixin and class.

<div class="center-block">...</div>

// Class
.center-block {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

// Usage as a mixin
.element {
  .center-block();
}

Clearfix

Easily clear floats by adding .clearfix to the parent element. Utilizes the micro clearfix as popularized by Nicolas Gallagher. Can also be used as a mixin.

<!-- Usage as a class -->
<div class="clearfix">...</div>

// Mixin itself
.clearfix() {
  &:before,
  &:after {
    content: " ";
    display: table;
  }
  &:after {
    clear: both;
  }
}

// Usage as a mixin
.element {
  .clearfix();
}

Showing and hiding content

Force an element to be shown or hidden (including for screen readers) with the use of .show and .hidden classes. These classes use !important to avoid specificity conflicts, just like the quick floats. They are only available for block level toggling. They can also be used as mixins.

.hide is available, but it does not always affect screen readers and is deprecated as of v3.0.1. Use .hidden or .sr-only instead.

Furthermore, .invisible can be used to toggle only the visibility of an element, meaning its display is not modified and the element can still affect the flow of the document.

<div class="show">...</div>
<div class="hidden">...</div>

// Classes
.show {
  display: block !important;
}
.hidden {
  display: none !important;
}
.invisible {
  visibility: hidden;
}

// Usage as mixins
.element {
  .show();
}
.another-element {
  .hidden();
}

Screen reader and keyboard navigation content

Hide an element to all devices except screen readers with .sr-only. Combine .sr-only with .sr-only-focusable to show the element again when it's focused (e.g. by a keyboard-only user). Necessary for following accessibility best practices. Can also be used as mixins.

<a class="sr-only sr-only-focusable" href="#content">Skip to main content</a>

// Usage as a mixin
.skip-navigation {
  .sr-only();
  .sr-only-focusable();
}

Image replacement

Utilize the .text-hide class or mixin to help replace an element's text content with a background image.

<h1 class="text-hide">Custom heading</h1>

// Usage as a mixin
.heading {
  .text-hide();
}

Colored dot

Use the .colored-dot class to add the `dot` representative of our branding.

It's used for headings, usually `h1` and `h2` and the default is the blue option. Since the headings are not scored, the dot is going to be a decorative thing that is not going to appear on the DOM, so you don´t have to add it to the copy.

I've got a colored dot

<h2 class="colored-dot"></h2>

Use the .colored-dot-green modifier to get a green dot

I've got a green dot

<h2 class="colored-dot colored-dot-green"></h2>

For faster mobile-friendly development, use these utility classes for showing and hiding content by device via media query. Also included are utility classes for toggling content when printed.

Try to use these on a limited basis and avoid creating entirely different versions of the same site. Instead, use them to complement each device's presentation.

Available classes

Use a single or combination of the available classes for toggling content across viewport breakpoints.

	Extra small devices Phones (<576px)	Small devices Tablets (≥576px)	Medium devices Desktops (≥768px)	Large devices Desktops (≥992px)	Extra Large devices Desktops (≥1200px)
`.visible-xs-*`	Visible	Hidden	Hidden	Hidden	Hidden
`.visible-sm-*`	Hidden	Visible	Hidden	Hidden	Hidden
`.visible-md-*`	Hidden	Hidden	Visible	Hidden	Hidden
`.visible-lg-*`	Hidden	Hidden	Hidden	Visible	Hidden
`.visible-xl-*`	Hidden	Hidden	Hidden	Hidden	Visible
`.hidden-xs`	Hidden	Visible	Visible	Visible	Visible
`.hidden-sm`	Visible	Hidden	Visible	Visible	Visible
`.hidden-md`	Visible	Visible	Hidden	Visible	Visible
`.hidden-lg`	Visible	Visible	Visible	Hidden	Visible
`.hidden-xl`	Visible	Visible	Visible	Visible	Hidden

As of v3.2.0, the .visible-*-* classes for each breakpoint come in three variations, one for each CSS display property value listed below.

Group of classes	CSS `display`
`.visible-*-block`	`display: block;`
`.visible-*-inline`	`display: inline;`
`.visible-*-inline-block`	`display: inline-block;`

So, for extra small (xs) screens for example, the available .visible-*-* classes are: .visible-xs-block, .visible-xs-inline, and .visible-xs-inline-block.

The classes .visible-xs, .visible-sm, .visible-md, and .visible-lg also exist, but are deprecated as of v3.2.0. They are approximately equivalent to .visible-*-block, except with additional special cases for toggling <table>-related elements.

Print classes

Similar to the regular responsive classes, use these for toggling content for print.

Classes	Browser	Print
`.visible-print-block` `.visible-print-inline` `.visible-print-inline-block`	Hidden	Visible
`.hidden-print`	Visible	Hidden

The class .visible-print also exists but is deprecated as of v3.2.0. It is approximately equivalent to .visible-print-block, except with additional special cases for <table>-related elements.

Test cases

Resize your browser or load on different devices to test the responsive utility classes.

Visible on...

Green checkmarks indicate the element is visible in your current viewport.

Extra small ✔ Visible on x-small

Small ✔ Visible on small

Medium ✔ Visible on medium

Large ✔ Visible on large

Extra Large ✔ Visible on x-large

Extra small and small ✔ Visible on x-small and small

Medium and large ✔ Visible on medium and large

Extra small and medium ✔ Visible on x-small and medium

Small and extra large ✔ Visible on small and x-large

Extra small and large ✔ Visible on x-small and large

Small and medium ✔ Visible on small and medium

Hidden on...

Here, green checkmarks also indicate the element is hidden in your current viewport.

Extra small ✔ Hidden on x-small

Small ✔ Hidden on small

Medium ✔ Hidden on medium

Large ✔ Hidden on large

Extra Large ✔ Hidden on x-large

Extra small and small ✔ Hidden on x-small and small

Medium and large ✔ Hidden on medium and large

Extra small and medium ✔ Hidden on x-small and medium

Small and large ✔ Hidden on small and x-large

Extra small and large ✔ Hidden on x-small and large

Small and medium ✔ Hidden on small and medium

CSS

Overview

HTML5 doctype

Mobile first

Typography and links

Normalize.css

Containers

Grid system

Introduction

Media queries

Grid options

Example: Stacked-to-horizontal

Example: Fluid container

Example: Mobile and desktop

Example: Mobile, tablet, desktop

Example: Column wrapping

Equal height columns

Without row-equal-height

With row-equal-height

Responsive column resets

Offsetting columns

Nesting columns

Column ordering

Typography

Headings

h1. Bootstrap heading

h2. Bootstrap heading

h3. Bootstrap heading

h4. Bootstrap heading

h5. Bootstrap heading

h6. Bootstrap heading

h1. Bootstrap heading

h2. Bootstrap heading

h3. Bootstrap heading

h4. Bootstrap heading

h5. Bootstrap heading

h6. Bootstrap heading

h1. Bootstrap heading

h2. Bootstrap heading

h3. Bootstrap heading

h4. Bootstrap heading

h5. Bootstrap heading

h6. Bootstrap heading

h1. Bootstrap heading

h2. Bootstrap heading

h3. Bootstrap heading

h4. Bootstrap heading

h5. Bootstrap heading

h6. Bootstrap heading

Display headings

Display 1

Display 2

Display 3

Display 4

Body copy

Lead body copy

Built with Less

Inline text elements

Marked text

Deleted text

Strikethrough text

Inserted text

Underlined text

Small text

Bold

Italics

Alternate elements

Alignment classes

Transformation classes

Abbreviations

Basic abbreviation

Initialism

Addresses

Blockquotes

Default blockquote

Blockquote options

Naming a source

Alternate displays

Lists

Unordered

Demo `:focus` state

Caveat about link functionality of `<a>`