Parabola Header

Hi everybody,

I’m new to the parabola theme, and I’ve got some issues with the header. Here’s what I’d like to do:

– Remove the bacground color (white on my site) so the page background image can de visible

– I have a background image for the header, but it’s limited to 1050x100px. I’d like it to have the same width as the background. Is that possible?

Here’s my website: https://www.circuitvideo.fr

Thanks to all who can help me ??