[Theme:Textured] How to change the height of my logo

Guys,my logo at : http://www.bloggingarchive.com is a bit too larger in height than the space provided by the theme. i’m using mythemeshop’s textured theme.
what css can i change to increase the height?
my current code is :

#header h1, #header h2 {
width: 400px;
}

still the height isn’t enough please help : check my logo here ; http://www.bloggingarchive.com
I need a code to add to the custom css