To center the Title and Date (meta data) of both your sites POSTS and PAGES.
>Dashboard
>Appearance
On your current THEME select >CUSTOMIZE
>Additional CSS
Paste the following chunk of code
/***Start Comment CENTER TITLE code ***/
/*Start Code to center Titles*/
.entry-header, .entry-meta { text-align: center; }
/*End code to center titles*/
/***STOP Comment CENTER TITLE code ***/
