How to center a page or all pages

Hello there,

It looks like button blocks are in use there.

You should be able to align these options as seen here: https://wordpress.com/support/wordpress-editor/blocks/buttons-block/#aligning-buttons

I hope this helps.

Thank you @aleone89 for your answer.

That option does not seem to be available in this template. (Only the option to choose “Fill” or “Outline” style).

You can see it in the screenshot I link here.
https://urbo.pt/no%20justify%20available.PNG

In your screenshot it looks like you are clicking on just one button, but the trick here is you must pick the block that all the buttons are contained in.

Instead of seeing text formatting options (which you would see for a single button) you will instead see other options for alignment. This is difficult to explain in words, so I recorded a quick animation to show you how to find the top level “buttons block” and change alignment.

You can view the at this link: https://d.pr/i/p5R7mK

Thank you @jerrysarcastic, indeed that was my mistake. It worked!
Thank you also @aleone89 for providing the resolution.

Have a great week ??