Stacks

Classes

Class	Parent	Modifies	Description
`.s-notice`	`.s-toast` when rendered as a toast	N/A	Base notice parent class.
`.s-notice--actions`	`.s-notice`	N/A	Container styling for notice actions including the dismiss button.
`.s-notice--dismiss`	`.s-notice`	N/A	Applies to child button element within the notice to position it appropriately.
`.s-notice__activity`	N/A	`.s-notice`	Applies activity (pink) visual styles.
`.s-notice__danger`	N/A	`.s-notice`	Applies danger (red) visual styles.
`.s-notice__featured`	N/A	`.s-notice`	Applies featured (purple) visual styles.
`.s-notice__important`	N/A	`.s-notice`	Applies an important visual style. This should be used for time-sensitive, pressing information that needs to be noticed by the user.
`.s-notice__info`	N/A	`.s-notice`	Applies info (blue) visual styles.
`.s-notice__success`	N/A	`.s-notice`	Applies success (green) visual styles.
`.s-notice__warning`	N/A	`.s-notice`	Applies warning (yellow) visual styles.
`.s-toast`	N/A	N/A	Parent of `.s-notice`. See the Toast section for more information.

Accessibility

Section titled Accessibility

Item	Modifies	Description
`aria-labelledby="[id]"`	`.s-toast`	Used to reference the alert message within the dialog. If you are using `.s-toast`, this must be applied.
`aria-hidden="[state]"`	`.s-toast`	Informs assistive technologies (such as screen readers) if they should ignore the element. When applied to `.s-toast`, Stacks will use this attribute to show or hide the toast.
`aria-label="[text]"`	`.s-btn`	Labels the element for assistive technologies (such as screen readers). This should be used on any button that does not contain text content.
`role="alert"`	`.s-notice`	A form of live region which contains important, usually time-sensitive, information. Elements with an alert role have an implicit `aria-live` value of `assertive` and implicit `aria-atomic` value of `true`.
`role="alertdialog"`	`.s-toast`	The wrapping content area of an `alert`. Elements with the `alertdialog` role must use the `aria-describedby` attribute to reference the alert message within the dialog.
`role="status"`	`.s-notice`	A form of live region which contains advisory information but isn't important enough to justify an alert role. Elements with a status role have an implicit `aria-live` value of `polite` and implicit `aria-atomic` value of `true`. If the element controlling the status appears in a different area of the page, you must make the relationship explicit with the `aria-controls` attribute.

Examples

Section titled Examples

Base

Section titled Base

<div class="s-notice" role="status">
    <span class="s-notice--icon">@Svg.Help</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__info" role="status">
    <span class="s-notice--icon">@Svg.Info</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__success" role="status">
    <span class="s-notice--icon">@Svg.Check</span>
    <span>… <a href="…">…</a></span>
</div>
<div class="s-notice s-notice__warning" role="status">
    <span class="s-notice--icon">@Svg.Alert</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__danger" role="status">
    <span class="s-notice--icon">@Svg.AlertFill</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__featured" role="status">
    <span class="s-notice--icon">@Svg.Star</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__activity" role="status">
    <span class="s-notice--icon">@Svg.Notification</span>
    <span>…</span>
</div>

Default filled message style and some code notice. Link

Info filled message style and some code notice. Link

Success filled message style and some code notice. Link

Warning filled message style and some code notice. Link

Danger filled message style and some code notice. Link

Featured filled message style and some code notice. Link

Activity filled message style and some code notice. Link

Important

Section titled Important

Used sparingly for when an important notice needs to be noticed

<div class="s-notice s-notice__important" role="alert">
    <span class="s-notice--icon">@Svg.Help</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__info s-notice__important" role="alert">
    <span class="s-notice--icon">@Svg.Info</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__success s-notice__important" role="alert">
    <span class="s-notice--icon">@Svg.Info</span>
    <span>… <a href="…">…</a></span>
</div>
<div class="s-notice s-notice__warning s-notice__important" role="alert">
    <span class="s-notice--icon">@Svg.Alert</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__danger s-notice__important" role="alert">
    <span class="s-notice--icon">@Svg.AlertFill</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__featured s-notice__important" role="alert">
    <span class="s-notice--icon">@Svg.Star</span>
    <span>…</span>
</div>
<div class="s-notice s-notice__activity s-notice__important" role="alert">
    <span class="s-notice--icon">@Svg.Notification</span>
    <span>…</span>
</div>

Default filled message style and some code notice. Link

Info filled message style and some code notice. Link

Success filled message style and some code notice. Link

Warning filled message style and some code notice. Link

Danger filled message style and some code notice. Link

Featured filled message style and some code notice. Link

Activity filled message style and some code notice. Link

Styling child links

Section titled Styling child links

We recommend using descendent anchor classes, typically .s-anchors.s-anchors__inherit.s-anchors__underlined for notices containing links generated from markdown when you cannot manually generate the inner html.

<div class="s-notice s-notice__info" role="presentation">
    <span>Notice with <a href="#" class="s-link">default link style</a></span>
</div>
<div class="s-notice s-notice__info s-anchors s-anchors__inherit s-anchors__underlined" role="presentation">
    <span>Notice with <a href="#">custom link style</a></span>
</div>

Notice with default link style

Notice with .s-anchors .s-anchors__inherit .s-anchors__underlined and custom link style

Toast

Section titled Toast

We are phasing out Toasts due to significant accessibility barriers. Avoid this component for new features. Instead, prioritize integrated alternatives—such as component state changes or inline messages—to provide accessible feedback directly where the user is focused.

Toasts are floating notices that are aligned to the center top of the page. They disappear after a set time. Visibility is changed with animation by toggling between aria-hidden="true" and aria-hidden="false". When including a dismiss button the .s-notice--dismiss class should be applied to the button for toast-specific styling.

<div
    role="alertdialog"
    id="example-toast"
    class="s-toast"
    aria-hidden="true"
    aria-labelledby="toast-message"
    data-controller="s-toast"
    data-s-toast-target="toast"
    data-s-toast-return-element=".js-example-toast-open[data-target='#example-toast']">
    <aside class="s-notice d-flex wmn4">
        <span class="s-notice--icon">@Svg.Info</span>
        <span>Toast notice message with an undo button</span>
        <div class="s-notice--actions">
            <button type="button" class="s-link s-link__underlined">Undo</button>
            <button type="button" class="s-link s-notice--dismiss js-toast-close" aria-label="Dismiss">@Svg.Cross</button>
        </div>
    </aside>
</div>

Default toast with an undo button.

Info toast with an undo button.

Success toast with an undo button.

Warning toast with an undo button.

Danger toast with an undo button.

Featured toast with an undo button.

Activity toast with an undo button.

JavaScript

Section titled JavaScript

Attributes

Section titled Attributes

Attribute	Modifies	Description
`data-controller="s-toast"`	Controller element	Wires up the element to the toast controller. This may be a `.s-toast` element or a wrapper element.
`data-s-toast-target="toast"`	Controller element	Wires up the element that is to be shown/hidden
`data-s-toast-target="initialFocus"`	Any child focusable element	Designates which element to focus on toast show. If absent, defaults to the first focusable element within the toast.
`data-action="s-toast#toggle"`	Toggling element	Wires up the element to toggle the visibility of a toast
`data-s-toast-return-element="[css selector]"`	Controller element	(optional) Designates the element to return focus to when the toast is closed. If left unset, focus is not altered on close.
`data-s-toast-remove-when-hidden="true"`	Controller element	(optional) Removes the toast from the DOM entirely when it is hidden

Events

Section titled Events

Event	Modifies	Description
`s-toast:show`	Toast target	Fires immediately before showing the toast. Calling `.preventDefault()` cancels the display of the toast.
`s-toast:shown`	Toast target	Fires after the toast has been visually shown
`s-toast:hide`	Toast target	Fires immediately before hiding the toast. Calling `.preventDefault()` cancels the removal of the toast.
`s-toast:hidden`	Toast target	Fires after the toast has been visually hidden

Event details

Section titled Event details

event.detail	Applicable events	Description
`dispatcher`	`s-toast:*`	Contains the `Element` that initiated the event. For instance, the button clicked to show, the element clicked outside the toast that caused it to hide, etc.
`returnElement`	`s-toast:show, s-toast:hide`	Contains the `Element` to return focus to on hide. If a value is set to this property inside an event listener, it will be updated on the controller as well.

Helpers

Section titled Helpers

The following helpers are available to manually show and hide a toast notice.

Function	Parameters	Description
`Stacks.showToast`	element	Helper to manually show an s-toast element via external JS
`Stacks.hideToast`	element	Helper to manually hide an s-toast element via external JS

Notices

Classes

Accessibility

Examples

Base

Important

Styling child links

Toast

JavaScript

Attributes

Events

Event details

Helpers