Alerts

Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages.

How to use

<div class="alert alert-info" role="alert">
  <strong>Heads up!</strong> This alert needs your attention, but it's not super important.
</div>
<div class="alert alert-success" role="alert">
  <strong>Well done!</strong> You successfully read this important alert message.
</div> 
<div class="alert alert-warning" role="alert">
  <strong>Warning!</strong> Better check yourself, you're not looking too good.
</div>
<div class="alert alert-danger" role="alert">
  <strong>Oh snap!</strong> Change a few things up and try submitting again.
</div>

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

<div class="alert alert-info" role="alert">
  This alert needs attention, <a href="#" class="alert-link">but it's not important</a>.
</div>
<div class="alert alert-success" role="alert">
  You successfully read <a href="#" class="alert-link">this important alert message</a>.
</div>
<div class="alert alert-warning" role="alert">
  Better check yourself, you're <a href="#" class="alert-link">not looking too good</a>.
</div>
<div class="alert alert-danger" role="alert">
  Change a few things up and <a href="#" class="alert-link">try submitting again</a>.
</div>

Additional content

<div class="alert alert-info" role="alert">
  <h4 class="alert-heading">Well done!</h4>
  <p class="mb-0">Aww yeah, you successfully read this important alert message.</p>
</div>

Dismissing

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.

To animate alerts when dismissing them, be sure to add the .fade and .in classes.

<div class="alert alert-warning alert-dismissible fade in" role="alert">
  <button type="button" class="close" data-dismiss="alert" aria-label="Close">
    <span aria-hidden="true">&times;</span>
  </button>
  <strong>Holy guacamole!</strong> You should check in on some of those fields below.
</div>

JavaScript behavior

Enable dismissal of an alert via JavaScript:

$(".alert").alert()

Or with data attributes on a button within the alert:

<button type="button" class="close" data-dismiss="alert" aria-label="Close">
  <span aria-hidden="true">&times;</span>
</button>

Methods

Method Description
$().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 .in classes are present on the element, the alert will fade out before it is removed. 
$(".alert").alert('close')

Events

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

Event Description
close.bs.alert This event fires immediately when the close instance method is called.
closed.bs.alert This event is fired when the alert has been closed (will wait for CSS transitions to complete). 
$('#myAlert').on('closed.bs.alert', function () {
  // do something…
})