Background Image full width of top menu bar

Hello,

I have a static menu bar at the top of my pages along with my logo. How can I apply a background image to the menu bar that stretches across the entire page?
Thanks in advance

Hi,

Please post a link to your website and also if you can, please post a link to the image you want to apply as menu background color, so I can check how that can be done.

Best Regards,
Csaba