Badges

Documentation and examples for badges, our small count and labeling component.

On this page

Examples

Badges scale to match the size of the immediate parent element by using relative font sizing and em units. As of v5, badges no longer have focus or hover styles for links.

Headings

Example heading New

html

<h1>Example heading <span class="badge text-bg-secondary">New</span></h1>
<h2>Example heading <span class="badge text-bg-secondary">New</span></h2>
<h3>Example heading <span class="badge text-bg-secondary">New</span></h3>
<h4>Example heading <span class="badge text-bg-secondary">New</span></h4>
<h5>Example heading <span class="badge text-bg-secondary">New</span></h5>
<h6>Example heading <span class="badge text-bg-secondary">New</span></h6>

Buttons

Badges can be used as part of links or buttons to provide a counter.

html

<button type="button" class="btn btn-primary">
  Notifications <span class="badge text-bg-secondary">4</span>
</button>

Note that depending on how they are used, badges may be confusing for users of screen readers and similar assistive technologies. While the styling of badges provides a visual cue as to their purpose, these users will simply be presented with the content of the badge. Depending on the specific situation, these badges may seem like random additional words or numbers at the end of a sentence, link, or button.

Unless the context is clear (as with the “Notifications” example, where it is understood that the “4” is the number of notifications), consider including additional context with a visually hidden piece of additional text.

Positioned

Use utilities to modify a .badge and position it in the corner of a link or button.

html

<button type="button" class="btn btn-primary position-relative">
  Inbox
  <span class="position-absolute top-0 start-100 translate-middle badge rounded-pill bg-danger">
    99+
    <span class="visually-hidden">unread messages</span>
  </span>
</button>

You can also replace the .badge class with a few more utilities without a count for a more generic indicator.

html

<button type="button" class="btn btn-primary position-relative">
  Profile
  <span class="position-absolute top-0 start-100 translate-middle p-2 bg-danger border border-light rounded-circle">
    <span class="visually-hidden">New alerts</span>
  </span>
</button>

Background colors

Added in v5.2.0

Set a background-color with contrasting foreground color with our .text-bg-{color} helpers. Previously it was required to manually pair your choice of .text-{color} and .bg-{color} utilities for styling, which you still may use if you prefer.

Primary Secondary Success Danger Warning Info Light Dark

html

<span class="badge text-bg-primary">Primary</span>
<span class="badge text-bg-secondary">Secondary</span>
<span class="badge text-bg-success">Success</span>
<span class="badge text-bg-danger">Danger</span>
<span class="badge text-bg-warning">Warning</span>
<span class="badge text-bg-info">Info</span>
<span class="badge text-bg-light">Light</span>
<span class="badge text-bg-dark">Dark</span>

**无障碍可访问性提示：**使用颜色来增加意义只提供了一种视觉指示，而不会传达给屏幕阅读器等辅助技术的用户。请确保其含义从内容本身来看是显而易见的(例如，具有足够颜色对比度)，或者通过其他方式包含，例如使用.visually-hidden类隐藏的其他文本。

Pill badges

Use the .rounded-pill utility class to make badges more rounded with a larger border-radius.

Primary Secondary Success Danger Warning Info Light Dark

html

<span class="badge rounded-pill text-bg-primary">Primary</span>
<span class="badge rounded-pill text-bg-secondary">Secondary</span>
<span class="badge rounded-pill text-bg-success">Success</span>
<span class="badge rounded-pill text-bg-danger">Danger</span>
<span class="badge rounded-pill text-bg-warning">Warning</span>
<span class="badge rounded-pill text-bg-info">Info</span>
<span class="badge rounded-pill text-bg-light">Light</span>
<span class="badge rounded-pill text-bg-dark">Dark</span>

CSS

Variables

Added in v5.2.0

As part of Bootstrap’s evolving CSS variables approach, badges now use local CSS variables on .badge for enhanced real-time customization. Values for the CSS variables are set via Sass, so Sass customization is still supported, too.

scss/_badge.scss

--#{$prefix}badge-padding-x: #{$badge-padding-x};
--#{$prefix}badge-padding-y: #{$badge-padding-y};
@include rfs($badge-font-size, --#{$prefix}badge-font-size);
--#{$prefix}badge-font-weight: #{$badge-font-weight};
--#{$prefix}badge-color: #{$badge-color};
--#{$prefix}badge-border-radius: #{$badge-border-radius};

Sass variables

scss/_variables.scss

$badge-font-size:                   .75em;
$badge-font-weight:                 $font-weight-bold;
$badge-color:                       $white;
$badge-padding-y:                   .35em;
$badge-padding-x:                   .65em;
$badge-border-radius:               var(--#{$prefix}border-radius);