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----
-layout: docs
-title: Alerts
-description: Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages.
-group: components
-redirect_from:
-  - "/components/"
-  - "/docs/4.3/components/"
-toc: true
----
-
-## Examples
-
-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 JavaScript plugin](#dismissing).
-
-{% capture example %}
-{% for color in site.data.theme-colors %}
-<div class="alert alert-{{ color.name }}" role="alert">
-  A simple {{ color.name }} alert—check it out!
-</div>{% endfor %}
-{% endcapture %}
-{% include example.html content=example %}
-
-{% include callout-warning-color-assistive-technologies.md %}
-
-### Link color
-
-Use the `.alert-link` utility class to quickly provide matching colored links within any alert.
-
-{% capture example %}
-{% for color in site.data.theme-colors %}
-<div class="alert alert-{{ color.name }}" role="alert">
-  A simple {{ color.name }} alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
-</div>{% endfor %}
-{% endcapture %}
-{% include example.html content=example %}
-
-### Additional content
-
-Alerts can also contain additional HTML elements like headings, paragraphs and dividers.
-
-{% capture example %}
-<div class="alert alert-success" role="alert">
-  <h4 class="alert-heading">Well done!</h4>
-  <p>Aww yeah, you successfully read this important alert message. This example text is going to run a bit longer so that you can see how spacing within an alert works with this kind of content.</p>
-  <hr>
-  <p class="mb-0">Whenever you need to, be sure to use margin utilities to keep things nice and tidy.</p>
-</div>
-{% endcapture %}
-{% include example.html content=example %}
-
-
-### 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.
-- 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 %}
-<div class="alert alert-warning alert-dismissible fade show" role="alert">
-  <strong>Holy guacamole!</strong> You should check in on some of those fields below.
-  <button type="button" class="close" data-dismiss="alert" aria-label="Close">
-    <span aria-hidden="true">&times;</span>
-  </button>
-</div>
-{% endcapture %}
-{% include example.html content=example %}
-
-## JavaScript behavior
-
-### Triggers
-
-Enable dismissal of an alert via JavaScript:
-
-{% highlight js %}
-var alertList = document.querySelectorAll('.alert')
-alertList.forEach(function (alert) {
-  new bootstrap.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">&times;</span>
-</button>
-{% endhighlight %}
-
-Note that closing an alert will remove it from the DOM.
-
-### Methods
-
-You can create an alert instance with the alert constructor, for example:
-
-{% highlight js %}
-var myAlert = document.getElementById('myAlert')
-var bsAlert = new bootstrap.Alert(myAlert)
-{% endhighlight %}
-
-This 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.)
-
-| Method | Description |
-| --- | --- |
-| `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. |
-| `dispose` | Destroys an element's alert. |
-| `_getInstance` | *Static* method which allows you to get the alert instance associated to a DOM element, you can use it like this: `bootstrap.Alert._getInstance(alert)` |
-
-{% highlight js %}
-var alertNode = document.querySelector('.alert')
-var alert = bootstrap.Alert._getInstance(alertNode)
-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 %}
-var myAlert = document.getElementById('myAlert')
-myAlert.addEventListener('closed.bs.alert', function () {
-  // do something…
-})
-{% endhighlight %}