How to Center Post titles, Gadgets, Dates and Tabs in Blogger

Go into the Template section on the lef --->Customize button

   --->Advanced section on the left

  ----> Add CSS

Once you are in there, you're going to want to add the following codes.  Simply copy/paste (or type) them into the Add CSS field, and then hit enter between each one.

Code to center your Post & Date Titles in Blogger:

.post-title {text-align:center;}
.date-header {text-align:center;}

Code to center your Gadget Headers in Blogger:

.widget {  text-align: center;}

 Code to center your Tabs in Blogger:

.PageList {text-align:center !important;}.PageList li {display:inline !important; float:none !important;}

You can also leave out any of these you want, and just pick and choose which things you want centered and which you do not.  If you leave one out, that section will just remain with the basic Blogger settings.