layout: docs title: Alerts description: Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages. group: components toc: true


Alerts are available for any length of text, as well as an optional dismiss button. For proper styling, use one of the eight required contextual classes (e.g., .alert-success). For inline dismissal, use the alerts jQuery plugin.

{% capture example %} {% for color in %}

{% include %}

Link color

Use the .alert-link utility class to quickly provide matching colored links within any alert.

{% capture example %} {% for color in %}

Additional content

Alerts can also contain additional HTML elements like headings, paragraphs and dividers.

{% capture example %}


Using the alert JavaScript plugin, it‘s possible to dismiss any alert inline. Here’s how:

  • Be sure you've loaded the alert plugin, or the compiled Bootstrap JavaScript.
  • If you're building our JavaScript from source, it [requires util.js]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/#util). The compiled version includes this.
  • Add a dismiss button and the .alert-dismissible class, which adds extra padding to the right of the alert and positions the .close button.
  • On the dismiss button, add the data-dismiss="alert" attribute, which triggers the JavaScript functionality. Be sure to use the <button> element with it for proper behavior across all devices.
  • To animate alerts when dismissing them, be sure to add the .fade and .show classes.

You can see this in action with a live demo:

{% capture example %}

JavaScript behavior


Enable dismissal of an alert via JavaScript:

{% highlight js %} $(‘.alert’).alert() {% endhighlight %}

Or with data attributes on a button within the alert, as demonstrated above:

{% highlight html %} × {% endhighlight %}

Note that closing an alert will remove it from the DOM.


$().alert()Makes an alert listen for click events on descendant elements which have the data-dismiss="alert" attribute. (Not necessary when using the data-api's auto-initialization.)
$().alert('close')Closes an alert by removing it from the DOM. If the .fade and .show classes are present on the element, the alert will fade out before it is removed.
$().alert('dispose')Destroys an element's alert.

{% highlight js %}$(“.alert”).alert(‘close’){% endhighlight %}


Bootstrap's alert plugin exposes a few events for hooking into alert functionality.

EventDescription event fires immediately when the close instance method is called. event is fired when the alert has been closed (will wait for CSS transitions to complete).

{% highlight js %} $(‘#myAlert’).on(‘’, function () { // do something… }) {% endhighlight %}