Sitemap has no borders

Hello all,

I a’m going from openhab 2 to openhab 3. Now i have it working.
Created a sitemap and have some questions about it.
In openhab 2 i had nice borders around the items that are displayed

Now in openhab 3 i don’t have the border around it, and also not every item has a line below it.
How do i get the line below every item and how do i get the border around all the items ?