Hello @maderodecor,
Please mention where do you exactly wont to place your logo so that we can provide the precise CSS. Also, we are unable to understand what do you mean by the width of the header. So can you please explain your request properly with the proper screenshot marking the sections so that we can help you further.
Also, do not forget to post your site URL so that we can provide the precise fix.
Further, please post your request in the English language so that we can help understand your request properly and respond accordingly.
Thank you.
Regards!!