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.
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.
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.
Muted
Primary.
Success
Info
Warning
Danger
<p class="text-muted">Muted</p>
<p class="text-primary">Primary.</p>
<p class="text-success">Success</p>
<p class="text-info">Info</p>
<p class="text-warning">Warning</p>
<p class="text-danger">Danger</p>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.
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.
As with contextual colors, ensure that any meaning conveyed through color is also conveyed in a format that is not purely presentational.
Muted
Primary
Success
Info
Warning
Danger
<p class="bg-muted">Muted</p>
<p class="bg-primary">Primary</p>
<p class="bg-success">Success</p>
<p class="bg-info">Info</p>
<p class="bg-warning">Warning</p>
<p class="bg-danger">Danger</p>The background classes come with hover effects when applied to table rows. (Except when using .table-nohover)
| bg-danger-light |
| bg-success-light |
| bg-warning-light |
| bg-info-light |
| bg-primary-light |
| bg-primary |
| bg-success |
| bg-info |
| bg-warning |
| bg-danger |
| bg-success-gradient |
| bg-info-gradient |
| bg-warning-gradient |
| bg-danger-gradient |
<table class="table table-condensed">
<tbody>
<tr class="bg-danger-light">
<td>bg-danger-light</td>
</tr>
<tr class="bg-success-light">
<td>bg-success-light</td>
</tr>
<tr class="bg-warning-light">
<td>bg-warning-light</td>
</tr>
<tr class="bg-info-light">
<td>bg-info-light</td>
</tr>
<tr class="bg-primary-light">
<td>bg-primary-light</td>
</tr>
<tr class="bg-primary">
<td>bg-primary</td>
</tr>
<tr class="bg-success">
<td>bg-success</td>
</tr>
<tr class="bg-info">
<td>bg-info</td>
</tr>
<tr class="bg-warning">
<td>bg-warning</td>
</tr>
<tr class="bg-danger">
<td>bg-danger</td>
</tr>
<tr class="bg-success-gradient">
<td>bg-success-gradient</td>
</tr>
<tr class="bg-info-gradient">
<td>bg-info-gradient</td>
</tr>
<tr class="bg-warning-gradient">
<td>bg-warning-gradient</td>
</tr>
<tr class="bg-danger-gradient">
<td>bg-danger-gradient</td>
</tr>
</tbody>
</table><div class="row">
<div class="col flex-grow-0">
<div class="bg-pomegranate text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-pomegranate
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-amaranth text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-amaranth
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-seance text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-seance
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-royal-purple text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-royal-purple
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-san-marino text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-san-marino
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-blue-ribbon text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-blue-ribbon
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-cerulean text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-cerulean
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-robins-egg-blue text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-robins-egg-blue
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-gossamer text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-gossamer
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-fruit-salad text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-fruit-salad
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-sushi d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-sushi
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-wattle d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-wattle
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-bright-sun d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-bright-sun
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-amber d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-amber
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-orange-peel d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-orange-peel
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-orange text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-orange
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-coffee text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-coffee
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-silver-chalice text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-silver-chalice
</div>
</div>
<div class="col flex-grow-0">
<div class="bg-lynch text-white d-flex justify-content-center align-items-center rounded-xl mb-3" style="width:10em;height:10em;">
.bg-lynch
</div>
</div>
</div>To control sizes of an element we can use classes below. The classes .element, *-sm and *-lg variants match the height of the same variant input.
.element-xs
.element-sm
.element
.element-lg
.element-xl
<div class="row text-center">
<div class="col">
<div class="element-xs border-2">
<code>.element-xs</code>
</div>
</div>
<div class="col">
<div class="element-sm border-2">
<code>.element-sm</code>
</div>
</div>
<div class="col">
<div class="element border-2">
<code>.element</code>
</div>
</div>
<div class="col">
<div class="element-lg border-2">
<code>.element-lg</code>
</div>
</div>
<div class="col">
<div class="element-xl border-2">
<code>.element-xl</code>
</div>
</div>
</div>Add .element-1by1 to keep width and height the same.
<div class="row text-center">
<div class="col">
<div class="element-xs element-1by1 border-2 mb-2"></div>
<div class="element-sm element-1by1 border-2 mb-2"></div>
<div class="element element-1by1 border-2 mb-2"></div>
<div class="element-lg element-1by1 border-2 mb-2"></div>
<div class="element-xl element-1by1 border-2"></div>
</div>
</div>Use the generic close icon for dismissing content like modals and alerts.
<button type="button" class="close" aria-label="Close"><span aria-hidden="true">×</span></button>Load animation only .loader
<div class="spinner-border" role="status">
<span class="sr-only">Loading...</span>
</div><div class="spinner-border text-primary" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-border text-secondary" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-border text-success" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-border text-danger" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-border text-warning" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-border text-info" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-border text-light" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-border text-dark" role="status">
<span class="sr-only">Loading...</span>
</div>If you don’t fancy a border spinner, switch to the grow spinner. While it doesn’t technically spin, it does repeatedly grow!
<div class="spinner-grow" role="status">
<span class="sr-only">Loading...</span>
</div><div class="spinner-grow text-primary" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-grow text-secondary" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-grow text-success" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-grow text-danger" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-grow text-warning" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-grow text-info" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-grow text-light" role="status">
<span class="sr-only">Loading...</span>
</div>
<div class="spinner-grow text-dark" role="status">
<span class="sr-only">Loading...</span>
</div>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.
Easily clear floats by adding .clearfix to the parent element. Utilizes the micro clearfix as popularized by Nicolas Gallagher.
<div class="clearfix">
<div class="float-left">left</div>
<div class="float-right">right</div>
</div>
To align components in navbars with utility classes, use .navbar-left or .navbar-right instead. See the navbar docs for details.
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.
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.
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="#">Skip to main content</a>Utilize the .d-none class to help replace an element’s text content with a background image.
<h1 class="d-none">Custom heading</h1>