Use the Stacked variant in sidebars

Use the Stacked variant at the extra-small breakpoint and smaller

Make all banners dismissible, unless they contain critical information or an important action that users are required to take

Do not place an icon in the Info variant

Alert banners should never grow larger than outer max-width

Focus Management Expectations

Semantics

Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alternative means, such as additional text hidden with the .sr-only class.