| layout | title | description | group | toc |
|---|---|---|---|---|
docs |
Toasts |
Push notifications to your visitors with a toast, a lightweight and easily customizable alert message. |
components |
true |
Toasts are lightweight notifications designed to mimic the push notifications that have been popularized by mobile and desktop operating systems. They're built with flexbox, so they're easy to align and position.
Things to know when using the toast plugin:
- Toasts are opt-in for performance reasons, so you must initialize them yourself.
- Toasts will automatically hide if you do not specify
autohide: false.
{{< callout info >}} {{< partial "callout-info-prefersreducedmotion.md" >}} {{< /callout >}}
To encourage extensible and predictable toasts, we recommend a header and body. Toast headers use display: flex, allowing easy alignment of content thanks to our margin and flexbox utilities.
Toasts are as flexible as you need and have very little required markup. At a minimum, we require a single element to contain your "toasted" content and strongly encourage a dismiss button.
{{< example class="bg-light" >}}
Click the button the below to show as toast (positioning with our utilities in the lower right corner) that has been hidden by default with .hide.
<button type="button" class="btn btn-primary" id="liveToastBtn">Show live toast</button>
<div class="position-fixed bottom-0 end-0 p-3" style="z-index: 5">
<div id="liveToast" class="toast hide" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small>11 mins ago</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
Hello, world! This is a toast message.
</div>
</div>
</div>Toasts are slightly translucent, too, so they blend over whatever they might appear over.
{{< example class="bg-dark" >}}
You can stack toasts by wrapping them in a toast container, which will vertically add some spacing.
{{< example class="bg-light" >}}
Customize your toasts by removing sub-components, tweaking with [utilities]({{< docsref "/utilities/api" >}}), or adding your own markup. Here we've created a simpler toast by removing the default .toast-header, adding a custom hide icon from [Bootstrap Icons]({{< param icons >}}), and using some [flexbox utilities]({{< docsref "/utilities/flex" >}}) to adjust the layout.
{{< example class="bg-light" >}}
Alternatively, you can also add additional controls and components to toasts.
{{< example class="bg-light" >}}
Building on the above example, you can create different toast color schemes with our [color]({{< docsref "/utilities/colors" >}}) and [background]({{< docsref "/utilities/background" >}}). Here we've added .bg-primary and .text-white to the .toast, and then added .btn-close-white to our close button. For a crisp edge, we remove the default border with .border-0.
{{< example class="bg-light" >}}
Place toasts with custom CSS as you need them. The top right is often used for notifications, as is the top middle. If you're only ever going to show one toast at a time, put the positioning styles right on the .toast.
{{< example >}}
For systems that generate more notifications, consider using a wrapping element so they can easily stack.
{{< example class="bg-dark bd-example-toasts p-0" >}}
<!-- Then put toasts within -->
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
{{< placeholder width="20" height="20" background="#007aff" class="rounded me-2" text="false" title="false" >}}
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">just now</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
See? Just like this.
</div>
</div>
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
{{< placeholder width="20" height="20" background="#007aff" class="rounded me-2" text="false" title="false" >}}
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">2 seconds ago</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
Heads up, toasts will stack automatically
</div>
</div>
You can also get fancy with flexbox utilities to align toasts horizontally and/or vertically.
{{< example class="bg-dark bd-example-toasts d-flex" >}}
Toasts are intended to be small interruptions to your visitors or users, so to help those with screen readers and similar assistive technologies, you should wrap your toasts in an aria-live region. Changes to live regions (such as injecting/updating a toast component) are automatically announced by screen readers without needing to move the user's focus or otherwise interrupt the user. Additionally, include aria-atomic="true" to ensure that the entire toast is always announced as a single (atomic) unit, rather than announcing what was changed (which could lead to problems if you only update part of the toast's content, or if displaying the same toast content at a later point in time). If the information needed is important for the process, e.g. for a list of errors in a form, then use the [alert component]({{< docsref "/components/alerts" >}}) instead of toast.
Note that the live region needs to be present in the markup before the toast is generated or updated. If you dynamically generate both at the same time and inject them into the page, they will generally not be announced by assistive technologies.
You also need to adapt the role and aria-live level depending on the content. If it's an important message like an error, use role="alert" aria-live="assertive", otherwise use role="status" aria-live="polite" attributes.
As the content you're displaying changes, be sure to update the delay timeout to ensure people have enough time to read the toast.
<div class="toast" role="alert" aria-live="polite" aria-atomic="true" data-bs-delay="10000">
<div role="alert" aria-live="assertive" aria-atomic="true">...</div>
</div>When using autohide: false, you must add a close button to allow users to dismiss the toast.
{{< example class="bg-light" >}}
Initialize toasts via JavaScript:
var toastElList = [].slice.call(document.querySelectorAll('.toast'))
var toastList = toastElList.map(function (toastEl) {
return new bootstrap.Toast(toastEl, option)
})Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-bs-, as in data-bs-animation="".
| Name | Type | Default | Description |
|---|---|---|---|
animation |
boolean | true |
Apply a CSS fade transition to the toast |
autohide |
boolean | true |
Auto hide the toast |
delay |
number |
5000
|
Delay hiding the toast (ms) |
{{< callout danger >}} {{< partial "callout-danger-async-methods.md" >}} {{< /callout >}}
Reveals an element's toast. Returns to the caller before the toast has actually been shown (i.e. before the shown.bs.toast event occurs).
You have to manually call this method, instead your toast won't show.
toast.show()Hides an element's toast. Returns to the caller before the toast has actually been hidden (i.e. before the hidden.bs.toast event occurs). You have to manually call this method if you made autohide to false.
toast.hide()Hides an element's toast. Your toast will remain on the DOM but won't show anymore.
toast.dispose()| Event type | Description |
|---|---|
show.bs.toast |
This event fires immediately when the show instance method is called. |
shown.bs.toast |
This event is fired when the toast has been made visible to the user. |
hide.bs.toast |
This event is fired immediately when the hide instance method has been called. |
hidden.bs.toast |
This event is fired when the toast has finished being hidden from the user. |
var myToastEl = document.getElementById('myToast')
myToastEl.addEventListener('hidden.bs.toast', function () {
// do something...
})