Bringing the page content in the center

How can I bring page title + page in the center of the screen/site?

Hi,

Did you mean that you want to centering the content of the single page? if yes, you can put the CSS code below to: Customize > additional CSS.

.page .entry-title, .page .entry-content, .page .entry-footer {
    text-align: center;
}

Regards,
Awan