How to center a horizontal list?

I have made a horizontal list, which will be visible when pressing the corresponding button. So far it works.
But all of the text in this bloc is centered, but the horizontal list (33 brands) keep there left alignment. How can I change this to center as well?

Inside blocs:

In my browser:


you could try to add a custom class to the list and then adding this code to the page.

Hey @webplus,

Thanks for taking your time to help me out with this problem. I did the things you told me, but the result isn’t yet as expected.


In blocs app:

When showing in the browser:

Did I do something wrong? Do you have any suggestions to solve this?