Question about centering content

Hi! We're new to Photofocus and hope we can use it to efficiently replace our current, Whizzy theme. We have the free Photofocus theme installed and already it's loading much faster than our current theme. Right now, I would like to center the "site identity" information (the site title and navigation menu on desktop systems). Is this something I'll need to center via custom CSS? Will the Photofocus Pro theme provide a mechanism to center/position the site identity information without using custom CSS? One thing we're leery about is installing a *ton* of plugins to accomplish any given thing. So, we hope we can keep third party plugins at a minimum. One last thing, our site is currently down (maintenance mode) while we customize the theme, so I can't really post links to anything. Right now, the "site identity" information is left justified. Thanks in advance!