Align Content Center – Viral news theme

Hi,
i need to alig to the center the posts of my blog (ex: https://www.spieghino.it/qual-e-il-film-che-ha-vinto-piu-premi-oscar-nella-storia/).

Now in desktop versione the single posts are aligned to left (there’s space to insert a widget on the left i think).

I’ve tried with some combination of css, without success.
Can Anyone help me?

Thank you.

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