Align Html widget (ManyChat)

I need to align center Manychat HTML widget.
I tryied to use this code:

but nothing is happened.

Can you help me?

Hello @daniele, instead of create a HTML directly in the bloc, first add a DIV, then inside the DIV add the HTML widget, then you choose the div Bric and in the definitions you can center the content, so the content of the HTML will be centered.