A banner highlighting key content that all visitors to a website will need to see.
About this component
The notification banner stretches across the top of a web page, spanning its full width. It pushes everything else on a web page beneath it.
Links to further content can be included in the banner.
You should try to avoid having more than 2 notification banners on a page. If you have more than 1 banner, each banner should be distinct.
Each banner should also allow the user to remove the banner from the page, usually by having a ‘close’ link or an ‘X’. If the user closes a banner, a cookie should be set logging that the banner shouldn’t appear again in the browser. Because of this, each banner will need a unique ID.
Generally, banners do not contain images, but may contain small icons, such as an arrow to highlight a link.
Other versions of this component
Notification banners can have an icon before their content.
Why we use this component
To highlight short, key content at the top of the page that all users need to see.
User research findings from GOV.UK and NHS suggests that banners which overlay or hide content on a page leads to a worse user experience (higher exit rate).
To understand user behaviour, clicks on banner links items can be tracked through the original page path, the click URL, the click text, and a data attribute showing the link click.
The data attribute is added automatically by the Design System’s ‘tracking’ script.
Feedback, help or support
If you need any help or want to give any feedback you can e-mail us at: firstname.lastname@example.org