Margin Between Logo and Tab Bar

Hiya, Great theme so far, considering the pro version to enable a responsive layout. Wasn't sure how much this would effect the content though if I've added customised info. Anyway, I've uploaded a custom logo and reduced the header margin at the top of the page which is great but I can't seem to find the code to reduce the margin between the bottom of the logo and the top of the meu bar. Any advice on finding that? The site is www.baskingsharkscotland.co.uk Thanks Shane Thanks Shane