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5.3.0 • Public • Published

Notification Banner

Events that deserve user attention, but don’t require a response, may be displayed in a Notification Banner. The Banner displays within the user’s field-of-view, but doesn’t block other interaction.

If the user is currently working in a specific screen area, the Banner may be presented in that area. If the Notification is more general, or doesn’t relate to a specific area of the screen, it may be presented in the center of the screen just below the Global Status Bar.

If another Notification Banner is waiting, it appears when the current Banner is dismissed. Banners don’t stack or group.


Web Components Usage

1. Installation

Install the Astro UXDS Notification Banner package via Command Line (Preferred Method)

The name of the package reflects its earlier history as Astro UXDS Modal.

npm i --save @astrouxds/rux-notification

You may use Yarn, NPM, or your Node package manager of choice. The --save flag adds this component as a dependency in your package.json file.

Alternatively, download the Astro UXDS Component Library source to your project.

Via CLI:

git clone

Or, download the Astro UXDS Components as a .zip

2. Import the Astro Notification Banner Web Component

This example assumes you're using the NPM package in node_modules. Otherwise, import the component using the path to the Astro Components directory in your project.

import { RuxNotification } from '@astrouxds/rux-notification/rux-notification.js'

3. Render the Astro Notification Banner Web Component

Pass properties as attributes of the Astro Notification Banner custom element. At a minimum, the component requires a message and the open attribute.

 <rux-notification open message="This is a notification message"></rux-notification>

You can toggle the display of the banner via the open attribute, which begins the self-close behavior after the close-after duration.

  message="This is an important notification which will disappear in 3.5 seconds.">

** Usage Note: **

The Astro UXDS Notification Banner hides from view using absolute positioning in CSS to slide up and outside of the parent element's content area. To ensure the notification hides properly, make sure the Notification Banner's parent element has both position: relative and overflow: hidden applied.


Property Type Default Required Description
open Boolean false Yes Set to true to display the Banner and begin countdown to close (if a close-after Number value is provided).
message String '' Yes Message for the notification banner.
closeAfter Number 2000 No If provided, the banner will automatically close after this amount of time. Accepts value either in milliseconds or seconds (which will be converted to milliseconds internally), between 2000 and 10000, or 2 and 10, respectively. Any number provided outside of the 2000-10000 range will be ignored in favor of the default 2000ms delay.
If closeAfter is not passed or if it is given an undefined or null value, the banner will stay open until the user closes it.
status String 'standby' No The background color. Possible values include 'standby', 'normal', 'caution', and 'critical'. See Astro UXDS Status System.

Revision History

  • Swapped kebab-cased close-after attribute for standard camelCase closeAfter
  • Removed target property and associated work-arounds to enforce parent element positioning. Added language to direct users to apply position: relative and overflow: hidden CSS declarations to containing elements themselves.
  • Enforced minimum 2000ms and maximum 10000ms close delay duration.
  • Replaced Polymer 3 implementation with LitElement for improved speed and interoperability with JS Frameworks as well as simpler template declaration now available in vanilla JavaScript.




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