Actually I just figured it out.
In the Quick CSS section place the following:
#header {
height:80px;
}
Make sure you use
#logo img {
}
To adjust the logo with the size of the header.
One thing I do need help with is, how do I make the background of a section transparent? When I go into the page editor I completely erase the code within the editor. Once I type, the a section is created with a white background. How do I make it transparent.