Align and columnize fields

Hello,

I’ve put a contact form with contact form 7 on the bottom of my main page, https://www.traiteur-paca.com
But all my fields are on top of each others, and they take too much room for me.

I would like to align it with my social icons, and “columnize” several fields, for example, “Nom et Prénom” at the left and “Adresse Mail” at the right, but in the same line.

I think this require CSS but I’m not capable of this..

Can you help me ? Thanks a lot !