base css

On top of the scaffolding, basic HTML elements are styled and enhanced with extensible classes to provide a fresh, consistent look and feel.

Headings & body copy

Typographic scale

The entire typographic grid is based on two Less variables in our variables.less file: @baseFontSizeand @baseLineHeight. The first is the base font-size used throughout and the second is the base line-height.

We use those variables, and some math, to create the margins, paddings, and line-heights of all our type and more.

Example body text

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.

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.

h1. heading 1

h2. Heading 2

h3. heading 3

h4. heading 4

h5. heading 5

h6. heading 6

Emphasis, address, and abbreviation

element	Usage	optional
`<strong>`	For emphasizing a snippet of text with important	None
`<em>`	For emphasizing a snippet of text with stress	None
`<abbr>`	Wraps abbreviations and acronyms to show the expanded version on hover	Include optional `title`attribute for expanded text Use `.initialism`class for uppercase abbreviations.
`<address>`	For contact information for its nearest ancestor or the entire body of work	Preserve formatting by ending all lines with`<br>`

Using emphasis

Fusce dapibus , tellus ac cursus commodo , tortor mauris condimentum nibh , ut fermentum massa justo sit ametrisus. Maecenas faucibus mollis interdum. Nulla vitae elit libero, a pharetra augue.

Note: Feel free to use <b>and <i>in HTML5, but their usage has changed a bit. <b>is meant to highlight words or phrases without conveying additional importance while <i>is mostly for voice, technical terms, etc.

Example addresses

Here are two examples of how the <address>tag can be used:

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

Full Name
[email protected]

Example abbreviations

Abbreviations with a titleattribute have a light dotted bottom border and a help cursor on hover. This gives users extra indication something will be shown on hover.

Add the initialismclass to an abbreviation to increase typographic harmony by giving it a slightly smaller text size.

HTML is the best thing since sliced bread.

An abbreviation of the word attribute is attr .

Blockquotes

element	Usage	optional
`<blockquote>`	Block-level element for quoting content from another source	Add `cite`attribute for source URL Use `.pull-left`and `.pull-right`classes for floating options
`<small>`	Optional element for adding a user-facing citation, typically an author with title of work	Place the `<cite>`around the title or name of source

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

Include an optional <small>element to cite your source and you'll get an em dash —before it for styling purposes.

<blockquote>
  <p> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat an ante venenatis. </p>
  <small> Someone famous </small>
</blockquote>

example blockquotes

Default blockquotes are styled as such:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat an ante venenatis.
Someone famous in Body of work

To float your blockquote to the right, add class="pull-right":

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat an ante venenatis.
Someone famous in Body of work

Lists

Unordered

<ul>

Lorem ipsum dolor sit amet
Consectetur adipiscing elite
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

unstyled

<ul class="unstyled">

Lorem ipsum dolor sit amet
Consectetur adipiscing elite
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

ordered

<ol>

Lorem ipsum dolor sit amet
Consectetur adipiscing elite
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

Description

<dl>

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.

horizontal description

<dl class="dl-horizontal">

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.
Felis euismod semper eget lacinia: Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit ametrisus.

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

Inline

Wrap inline snippets of code with <code>.

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

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

Note: Be sure to keep code within <pre>tags as close to the left as possible; it will render all tabs.

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

Google Pretty

Take the same <pre>element and add two optional classes for enhanced rendering.

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

< preclass = " prettyprint 
     linenums" >
  <p>Sample text here...</p>
</pre>

Download google-code-prettify and view the readme for how to use.

table markup

Tag	Description
`<table>`	Wrapping element for displaying data in a tabular format
`<thead>`	Container element for table header rows ( `<tr>`) to label table columns
`<tbody>`	Container element for table rows ( `<tr>`) in the body of the table
`<tr>`	Container element for a set of table cells ( `<td>`or `<th>`) that appears on a single row
`<td>`	default table cell
`<th>`	Special table cell for column (or row, depending on scope and placement) labels Must be used within a`<thead>`
`<caption>`	Description or summary of what the table holds, especially useful for screen readers

<table>
  <head>
    <tr>
      <th> … </th>
      <th> … </th>
    </tr>
  </thing>
  <body>
    <tr>
      <td> … </td>
      <td> … </td>
    </tr>
  </tbody>
</table>

Table options

Name	class	Description
Default	None	No styles, just columns and rows
Basic	`.table`	Only horizontal lines between rows
Bordered	`.table-bordered`	Rounds corners and adds outer border
Zebra-stripe	`.table-striped`	Adds light gray background color to odd rows (1, 3, 5, etc)
Condensed	`.table-condensed`	Cuts vertical padding in half, from 8px to 4px, within all `td`and `th`elements

example tables

1. Default table styles

Tables are automatically styled with only a few borders to ensure readability and maintain structure. With 2.0, the .tableclass is required.

<tableclass = " table" > 
  …
</table>

#	first name	last name	username
one	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry	the Bird	@twitter

2. Striped table

Get a little fancy with your tables by adding zebra-striping—just add the .table-stripedclass.

Note: Striped tables use the :nth-childCSS selector and is not available in IE7-IE8.

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

#	first name	last name	username
one	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry	the Bird	@twitter

3. Bordered table

Add borders around the entire table and rounded corners for aesthetic purposes.

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

#	first name	last name	username
one	Mark	Otto	@mdo
one	Mark	Otto	@getbootstrap
2	Jacob	Thornton	@fat
3	Larry the Bird		@twitter

4. Condensed table

Make your tables more compact by adding the .table-condensedclass to cut table cell padding in half (from 8px to 4px).

<table class = "table table condensed" > 
  …
</table>

#	first name	last name	username
one	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry the Bird		@twitter

5. Combine them all!

Feel free to combine any of the table classes to achieve different looks by utilizing any of the available classes.

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

	Full name
#	first name	last name	username
one	Mark	Otto	@mdo
2	Jacob	Thornton	@fat
3	Larry the Bird		@twitter

Flexible HTML and CSS

The best part about forms in Bootstrap is that all your inputs and controls look great no matter how you build them in your markup. No superfluous HTML is required, but we provide the patterns for those who require it.

More complicated layouts come with succinct and scalable classes for easy styling and event binding, so you're covered at every step.

Four layouts included

Bootstrap comes with support for four types of form layouts:

vertical (default)
Search
Inline
Horizontal

Different types of form layouts require some changes to markup, but the controls themselves remain and behave the same.

Control states and more

Bootstrap's forms include styles for all the base form controls like input, textarea, and select you'd expect. But it also comes with a number of custom components like appended and prepended inputs and support for lists of checkboxes.

States like error, warning, and success are included for each type of form control. Also included are styles for disabled controls.

Four types of forms

Bootstrap provides simple markup and styles for four styles of common web forms.

Name	class	Description
vertical (default)	`.form-vertical` (not required)	Stacked, left-aligned labels over controls
Inline	`.form-inline`	Left-aligned label and inline-block controls for compact style
Search	`.form-search`	Extra-rounded text input for a typical search aesthetic
Horizontal	`.form-horizontal`	Float left, right-aligned labels on same line as controls

Example forms using just form controls, no extra markup

basic form

Smart and lightweight defaults without extra markup.

<form class = "well" > 
  <label> Label name </label>
  <input type = "text" class = "span3" placeholder = "Type something…" >   
  <span class = "help-block" > Example block-level help text here. </span> 
  <label class = "checkbox" > 
    <input type = "checkbox" > Check me out 
  </label>
  <button type = "submit" class = "btn" > Submit </button>  
</form>

search form

Add .form-searchto the form and .search-queryto the input.

<form class = "well form-search" > 
  <input type = "text" class = "input-medium search-query" >  
  <button type = "submit" class = "btn" > Search </button>  
</form>

inline form

Add .form-inlineto finesse the vertical alignment and spacing of form controls.

<form class = "well form-inline" > 
  <input type = "text" class = "input-small" placeholder = "Email" >   
  <input type = "password" class = "input-small" placeholder = "Password" >   
  <label class = "checkbox" > 
    <input type = "checkbox" > Remember me 
  </label>
  <button type = "submit" class = "btn" > Sign in </button>  
</form>

horizontal forms

Shown on the right are all the default form controls we support. Here's the bulleted list:

text inputs (text, password, email, etc)
checkbox
radio
select
multiple select
file input
textarea

Example markup

Given the above example form layout, here's the markup associated with the first input and control group. The .control-group, .control-label, and .controlsclasses are all required for styling.

<form class = "form-horizontal" > 
  <fieldset>
    <legend> Legend text </legend>
    <div class = "control-group" > 
      <label class = "control-label" for = "input01" > Text input </label>  
      <div class = "controls" > 
        <input type = "text" class = "input-xlarge" id = "input01" >   
        <p class = "help-block" > Supporting help text </p> 
      </div>
    </div>
  </fieldset>
</form>

Form control states

Bootstrap features styles for browser-supported focused and disabledstates. We remove the default Webkit outlineand apply a box-shadowin its place for :focus.

Form validation

It also includes validation styles for errors, warnings, and success. To use, add the error class to the surrounding .control-group.

<fieldset
  class = "control-group error" >
  …
</fieldset>

focused input

uneditable input

Some value here

Disabled input

Disabled checkbox

This is a disabled checkbox

input with warning

Something may have gone wrong

input with error

Please correct the error

Input with success

Woohoo!

Select with success

Woohoo!

Extending form controls

Prepend & append inputs

Input groups—with appended or prepended text—provide an easy way to give more context for your inputs. Great examples include the @ sign for Twitter usernames or $ for finances.

Checkboxes and radios

Up to v1.4, Bootstrap required extra markup around checkboxes and radios to stack them. Now, it's a simple matter of repeating the <label class="checkbox">that wraps the <input type="checkbox">.

Inline checkboxes and radios are also supported. Just add .inlineto any .checkboxor .radioand you're done.

Inline forms and append/prepend

To use prepend or append inputs in an inline form, be sure to place the .add-onand inputon the same line, without spaces.

Form help text

To add help text for your form inputs, include inline help text with <span class="help-inline">or a help text block with <p class="help-block">after the input element.

Form grid sizes

Use the same .span*classes from the grid system for input sizes.

Alternate sizes

You may also use static classes that don't map to the grid, adapt to the responsive CSS styles, or account for varying types of controls (eg, inputvs. select).

Prepended text

Here's some help text

appended text

.00

Here's more help text

Append and prepend

$ .00

Append with button

Two-button append

Inline checkboxes

one 2 3

Checkboxes

Option one is this and that—be sure to include why it's great Option two can also be checked and included in form results Option three can—yes, you guessed it—also be checked and included in form results

Note: Labels surround all the options for much larger click areas and a more usable form.

radio buttons

Option one is this and that—be sure to include why it's great Option two can be something else and selecting it will deselect option one

button	class=""	Description
	`btn`	Standard gray button with gradient
	`btn btn-primary`	Provides extra visual weight and identifies the primary action in a set of buttons
	`btn btn-info`	Used as an alternative to the default styles
	`btn btn-success`	Indicates a successful or positive action
	`btn btn-warning`	Indicates caution should be taken with this action
	`btn btn-danger`	Indicates a dangerous or potentially negative action
	`btn btn-inverse`	Alternate dark gray button, not tied to a semantic action or use

Buttons for actions

As a convention, buttons should only be used for actions while hyperlinks are to be used for objects. For instance, "Download" should be a button while "recent activity" should be a link.

Button styles can be applied to anything with the .btnclass applied. However, typically you'll want to apply these to only <a>and <button>elements.

Cross browser compatibility

IE9 doesn't crop background gradients on rounded corners, so we remove it. Related, IE9 jankifies disabled buttonelements, rendering text gray with a nasty text-shadow that we cannot fix.

multiple sizes

Fancy larger or smaller buttons? Add .btn-large, .btn-small, or .btn-minifor two additional sizes.

disabled state

For disabled buttons, add the .disabledclass to links and the disabledattribute for <button>elements.

Primary link Link

Head up! We use .disabledas a utility class here, similar to the common .activeclass, so no prefix is required.

One class, multiple tags

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

<a class="btn" href=""> Link </a> _ _ _ _ _  
<button class = "btn" type = "submit" >  
  button
</button>
<input class = "btn" type = "button"  
         value = "input" >
<input class = "bt" type = "submit"  
         value = "Submit" >

As a best practice, try to match the element for you context to ensure matching cross-browser rendering. If you have an input, use an <input type="submit">for your button.

icon-glass
icon-music
icon-search
icon-envelope
icon-heart
icon-star
icon-star-empty
icon user
icon-film
icon-th-large
icon-th
icon-th-list
icon-ok
icon-remove
icon-zoom-in
icon-zoom-out
icon off
icon signal
icon-cog
icon-trash
icon home
icon file
icon-time
icon road
icon-download-alt
icon-download
icon-upload
icon-inbox
icon-play-circle
icon-repeat
icon-refresh
icon-list-alt
icon lock
icon-flag
icon-headphones

icon-volume-off
icon-volume-down
icon-volume-up
icon-qrcode
icon-barcode
icon-tag
icon-tags
icon book
icon-bookmark
icon print
icon-camera
icon-font
icon-bold
icon-italic
icon-text-height
icon-text-width
icon-align-left
icon-align-center
icon-align-right
icon-align-justify
icon-list
icon-indent-left
icon-indent-right
icon-facetime-video
icon picture
icon-pencil
icon-map-marker
icon-adjust
icon-tint
icon-edit
icon-share
icon check
icon-move
icon-step-backward
icon-fast-backward

icon-backward
icon-play
icon-pause
icon-stop
icon-forward
icon-fast-forward
icon-step-forward
icon-eject
icon-chevron-left
icon-chevron-right
icon plus sign
icon minus sign
icon-remove-sign
icon-ok-sign
icon-question-sign
icon-info-sign
icon-screenshot
icon-remove-circle
icon-ok-circle
icon-ban-circle
icon-arrow-left
icon-arrow-right
icon-arrow-up
icon-arrow-down
icon-share-alt
icon-resize-full
icon-resize-small
icon plus
icon minus
icon-asterisk
icon-exclamation-sign
icon-gift
icon-leaf
icon-fire
icon-eye-open

icon-eye-close
icon-warning-sign
icon plane
icon-calendar
icon-random
icon comment
icon magnet
icon-chevron-up
icon-chevron-down
icon-retweet
icon-shopping-cart
icon-folder-close
icon-folder-open
icon-resize-vertical
icon-resize-horizontal
icon hdd
icon bullhorn
icon-bell
icon-certificate
icon-thumbs-up
icon-thumbs-down
icon-hand-right
icon-hand-left
icon-hand-up
icon-hand-down
icon-circle-arrow-right
icon-circle-arrow-left
icon-circle-arrow-up
icon-circle-arrow-down
icon-globe
icon-wrench
icon-tasks
icon-filter
icon-briefcase
icon-fullscreen

Built as a sprite

Instead of making every icon an extra request, we've compiled them into a sprite—a bunch of images in one file that uses CSS to position the images with background-position. This is the same method we use on Twitter.com and it has worked well for us.

All icons classes are prefixed with .icon-for proper namespacing and scoping, much like our other components. This will help avoid conflicts with other tools.

Glyphicons has been granted us use of the Halflings set in our open-source toolkit so long as we provide a link and credit here in the docs. Please consider doing the same in your projects.

How to use

Bootstrap uses an <i>tag for all icons, but they have no case class—only a shared prefix. To use, place the following code just about anywhere:

<i class = "icon-search" ></i>

There are also styles available for inverted (white) icons, made ready with one extra class:

<i class = "icon-search icon-white" ></i>

There are 140 classes to choose from for your icons. Just add an <i>tag with the right classes and you're set. You can find the full list in sprites.less or right here in this document.

Head up! When using beside strings of text, as in buttons or nav links, be sure to leave a space after the <i>tag for proper spacing.

use cases

Icons are great, but where would one use them? Here are a few ideas:

As visuals for your sidebar navigation
For an icon purely driven navigation
For buttons to help convey the meaning of an action
With links to share context on a user's destination

Essentially, anywhere you can put an <i>tag, you can put an icon.

Examples

Use them in buttons, button groups for a toolbar, navigation, or prepended form inputs.

Refresh checkout Delete

Comment Settings more info

Typography Headings, paragraphs, lists, and other inline type elements