Thanks for the quick reply Rikard,
I followed the instructions and nothing is showing up in my header area. I tried both set of code to my functions PHP, placed the custom CSS and created a widget area for the header. Any widget that I place in the header widget area are not working.
You may not see a change if you are already at the maximum pixels that you set. If you are wanting to adjust the container the to browser, place percent as appose to pixels, you will see a change right away.