Question notification on all pages

[xemorytr]

hello everyone,
As I show in the picture, I want to create a notification at the top when users are browsing the homepage or all sections.
How can I add this?

Screenshot

Captured with Lightshot

prnt.sc

Thank you from now.

 

[Kaspar]

You could use the Plesk Broadcast Message extension. I don't think there is another way to accomplish this, other then creating your own Plesk extension.