Buttons
Default buttons
Button styles can be applied to anything with the .btn class applied. However, typically you'll want to apply these to only <a> and <button> elements for the best rendering.
| 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 | |
btn btn-link |
Deemphasize a button by making it look like a link while maintaining button behavior |
Cross browser compatibility
IE9 doesn't crop background gradients on rounded corners, so we remove it. Related, IE9 jankifies disabled button elements, rendering text gray with a nasty text-shadow that we cannot fix.
Button sizes
Fancy larger or smaller buttons? Add .btn-large, .btn-small, or .btn-mini for additional sizes.
<p> <button class="btn btn-large btn-primary" type="button"> Large button </button> <button class="btn btn-large" type="button"> Large button </button> </p> <p> <button class="btn btn-primary" type="button"> Default button </button> <button class="btn" type="button"> Default button </button> </p> <p> <button class="btn btn-small btn-primary" type="button"> Small button </button> <button class="btn btn-small" type="button"> Small button </button> </p> <p> <button class="btn btn-mini btn-primary" type="button"> Mini button </button> <button class="btn btn-mini" type="button"> Mini button </button> </p>
Create block level buttons—those that span the full width of a parent— by adding .btn-block.
<button class="btn btn-large btn-block btn-primary" type="button">// Block level button</button> <button class="btn btn-large btn-block" type="button"> //Block level button</button>
Disabled state
Make buttons look unclickable by fading them back 50%.
Anchor element
Add the .disabled class to <a> buttons.
<a href="#" class="btn btn-large btn-primary disabled">Primary link</a> <a href="#" class="btn btn-large disabled">Link</a>
Heads up!
We use .disabled as a utility class here, similar to the common .active class, so no prefix is required. Also, this class is only for aesthetic; you must use custom JavaScript to disable links here.
Button element
Add the disabled attribute to <button> buttons.
<button type="button" class="btn btn-large btn-primary disabled" disabled="disabled">Primary button</button> <button type="button" class="btn btn-large" disabled>Button</button>
One class, multiple tags
Use the .btn class 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="btn" type="submit" value="Submit">
As a best practice, try to match the element for your context to ensure matching cross-browser rendering. If you have an input, use an <input type="submit"> for your button.
Images
Add classes to an <img> element to easily style images in any project.
<img src="..." class="img-responsive img-rounded"> <img src="..." class="img-circle"> <img src="..." class="img-polaroid">
Heads up! .img-rounded and .img-circle do not work in IE7-8 due to lack of border-radius support.
Icons by Glyphicons
Icon glyphs
140 icons in sprite form, available in dark gray (default) and white, provided by Glyphicons.
Glyphicons attribution
Glyphicons Halflings are normally not available for free, but an arrangement between Bootstrap and the Glyphicons creators have made this possible at no cost to you as developers. As a thank you, we ask you to include an optional link back to Glyphicons whenever practical.
How to use
All icons require an <i> tag with a unique class, prefixed with icon-. 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. We will specifically enforce this class on hover and active states for nav and dropdown links.
<i class="icon-search icon-white"></i>
Heads 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.
Icon examples
Use them in buttons, button groups for a toolbar, navigation, or prepended form inputs.
Buttons
Button group in a button toolbar
<div class="btn-toolbar">
<div class="btn-group">
<a class="btn" href="#"><i class="icon-align-left"></i></a>
<a class="btn" href="#"><i class="icon-align-center"></i></a>
<a class="btn" href="#"><i class="icon-align-right"></i></a>
<a class="btn" href="#"><i class="icon-align-justify"></i></a>
</div>
</div>
Dropdown in a button group
<div class="btn-group">
<a class="btn btn-primary" href="#"><i class="icon-user icon-white"></i> User</a>
<a class="btn btn-primary dropdown-toggle" data-toggle="dropdown" href="#"><span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#"><i class="icon-pencil"></i> Edit</a></li>
<li><a href="#"><i class="icon-trash"></i> Delete</a></li>
<li><a href="#"><i class="icon-ban-circle"></i> Ban</a></li>
<li class="divider"></li>
<li><a href="#"><i class="i"></i> Make admin</a></li>
</ul>
</div>
Button sizes
<a class="btn btn-large" href="#"><i class="icon-star"></i> Star</a> <a class="btn btn-small" href="#"><i class="icon-star"></i> Star</a> <a class="btn btn-mini" href="#"><i class="icon-star"></i> Star</a>
Navigation
<ul class="nav nav-list"> <li class="active"><a href="#"><i class="icon-home icon-white"></i> Home</a></li> <li><a href="#"><i class="icon-book"></i> Library</a></li> <li><a href="#"><i class="icon-pencil"></i> Applications</a></li> <li><a href="#"><i class="i"></i> Misc</a></li> </ul>
Form fields
<div class="control-group">
<label class="control-label" for="inputIcon">Email address</label>
<div class="controls">
<div class="input-prepend">
<span class="add-on"><i class="icon-envelope"></i></span>
<input class="span2" id="inputIcon" type="text">
</div>
</div>
</div>
