how to reproduce 

• go to the demo: https://demo.ametys.org/nightly-intranet-cms/www/index.html
•  Choose a page that presents two content items or two services, such as the "Fonctionnalités dès" page.
• Slide the service behind the other, or do the same for two content items.

The highlighting that used to show the location of the content or service is no longer there.