Move Nav Bar Downwards

Hi, I’m using the Razzo theme on my website: http://www.buttercrumble.com/

The navbar used to be in down a little bit, so it was more central against the logo. I edited the wp_title code in the Header.php and now it’s jumped up! I can’t remember what I’ve done and how to change it now. Is it to do with that file?

Please could someone offer some suggestions on moving the navigation bar a little bit?

Thanks very much.