I apologize for the trouble, but I didn’t find a solution on this website.
I modified the image Header of this site (https://www.casapiazzarreda.it/ ).
The problem: I upload the original image in a format (1300x300 px), meanwhile when i change the image the dimension of Header are too little.
The theme is Metriulium Child (i think that is customized, but I’m not sure).
Please, could you help me ?
Thank you in advance,