--- layout: docs title: Alerts group: components --- Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages. ## Contents * Will be replaced with the ToC, excluding the "Contents" header {:toc} ## Examples Alerts are available for any length of text, as well as an optional dismiss button. For proper styling, use one of the four **required** contextual classes (e.g., `.alert-success`). For inline dismissal, use the [alerts jQuery plugin](#dismissing). {% example html %} <div class="alert alert-success" role="alert"> <strong>Well done!</strong> You successfully read this important alert message. </div> <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-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> {% endexample %} ### Link color Use the `.alert-link` utility class to quickly provide matching colored links within any alert. {% example html %} <div class="alert alert-success" role="alert"> <strong>Well done!</strong> You successfully read <a href="#" class="alert-link">this important alert message</a>. </div> <div class="alert alert-info" role="alert"> <strong>Heads up!</strong> This <a href="#" class="alert-link">alert needs your attention</a>, but it's not super important. </div> <div class="alert alert-warning" role="alert"> <strong>Warning!</strong> Better check yourself, you're <a href="#" class="alert-link">not looking too good</a>. </div> <div class="alert alert-danger" role="alert"> <strong>Oh snap!</strong> <a href="#" class="alert-link">Change a few things up</a> and try submitting again. </div> {% endexample %} ### Dismissing 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. - 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 `.in` classes. You can see this in action with a live demo: {% example html %} <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">×</span> <span class="sr-only">Close</span> </button> <strong>Holy guacamole!</strong> You should check in on some of those fields below. </div> {% endexample %} ## JavaScript behavior ### Triggers Enable dismissal of an alert via JavaScript: {% highlight js %} $(".alert").alert() {% endhighlight %} Or with `data` attributes on a button **within the alert**, as demonstrated above: {% highlight html %} <button type="button" class="close" data-dismiss="alert" aria-label="Close"> <span aria-hidden="true">×</span> <span class="sr-only">Close</span> </button> {% endhighlight %} Note that closing an alert will remove it from the DOM. ### Methods | Method | Description | | --- | --- | | `$().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.) | | `$().alert('close')` | Closes an alert by removing it from the DOM. If the `.fade` and `.in` classes are present on the element, the alert will fade out before it is removed. | {% highlight js %}$(".alert").alert('close'){% endhighlight %} ### 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 <code>close</code> instance method is called. | | `closed.bs.alert` | This event is fired when the alert has been closed (will wait for CSS transitions to complete). | {% highlight js %} $('#myAlert').on('closed.bs.alert', function () { // do something… }) {% endhighlight %}