Make header imager smaller on desktop

need to make the header image smaller just on the desktop. the mobile size is good.
http://caninemind.net/

Hello there,

Try adding this CSS code to Appearance > Customize > Additional CSS from dashbaord to change the default header image size which’s set to cover become contain.

    .header-image {
      background-size: contain !important;
    } 

Regards,
Kharis