[SOLVED] Help get my Header width of the body

Hi, I am new to WP. I have blogged with blogger and got used to finding the whole css sheet easy to navigate. I am trying to get used to everything in here still. I love learning new things and have searched the forums for a while trying to find what I am looking for.

I would like to make the header the width of the body. I like the text where it is with the padding between the body and the sidebar area. Here is the link to the site
Laura Sokol Photography

I appreciate any help in the right direction.

Thanks again.