STEPS TO REPRODUCE:
- Enable the Notification watch feature by changing the xwiki.properties file "notifications.watchedEntities.enabled = true"
- Click on bell icon to display Notifications toggles
All 3 toggles ('Watch this page', 'Watch this page and children' and 'Watch this wiki') are displayed in line.
The toggles are displayed in line only on Firefox browser, on the IE, Chrome and Edge are displayed in 2 lines.