Decrease vertical space between logo header and navigation

There's a big vertical space between my logo header and the navigation menu beneath it, even though the logo is cropped very tightly. There are no hidden blocks in between the logo and the navigation, and nothing that I can edit or shrink. Any help to decrease the space is very much appreciated!

Hi,

What is site url? We can check easier

Hi Tuanphan, thank you! It's http://www.badtaste.biz/home

You can add this to Design > Custom CSS

/* Space between logo - nav bar */
h1.logo.image {
    margin-bottom: 0px !important;
}
nav.main-nav {
    padding-top: 5px !important;
}

Thank you so much Tuanphan, that worked perfectly!