center logo in the header

Hello,

Can you please share link to your site so that I can help you regarding that?

Yes, but I’m in maintenance mode. Can you send me your e-mail (in private mail), so I can create a new user for you?

To view the contents in the maintenance mode one should have the admin access. No general users can access that.

Thank you.

sent you on gmail the website link
??

body #header-container { text-align: center; }
for the logo
If you’re using title/tagline, the CSS is a bit more complex.

Thank you theZedt, I resolved with

#header-container {
max-width: 1200px;
width: 100%;
}
#logo > img {
display: block;
margin: 0 auto;
}