I'm trying to center the logo insider my header in the twenty twelve theme. I tried making a child theme but it didn't seem to override the parent (though I am logged in as admin and the theme is active...) I am new to this, so help is greatly appreciated!
The site is http://endowmentinstitute.org/beta/. I've downloaded firebug and here's what the code says:
<head> <body class="page page-id-10 page-template-default logged-in admin-bar custom-background full-width custom-font-enabled single-author customize-support" data-twttr-rendered="true"> <div id="page" class="hfeed site"> <header id="masthead" class="site-header" role="banner"> <hgroup> <h1 class="site-title"> <a rel="home" title="Sustainable Endowments Institute" href="http://www.endowmentinstitute.org/beta/"> <img alt="Sustainable Endowments Institute" src="http://www.endowmentinstitute.org/beta/wp-content/uploads/2013/12/SEI-Logo-e1388431318512.png"> </a>
How can I modify this to center the logo?