Alternate logo for mobile on Moksha / Brine template

Site URL: https://www.michelevillaume-driscoll.art/

I don't like how the site logo looks on mobile and want to change it out. I uploaded the file I want to use for my mobile logo and used the code below (replacing "https://LOCATIONofLOGOFILE" with my uploaded logo location), but it isn't working. Anyone have a suggestion? Thanks! Ann

.Mobile-bar-branding-logo { content: url(https://LOCATIONofLOGOFILE) !important;
max-height: 40px;
min-height: 40px;
width:auto !important;
}

Which exact code did you add?

/* Mobile logo */
img.Mobile-bar-branding-logo {
    content: url(https://cdn.pixabay.com/photo/2022/02/14/12/03/craniosacral-7012994__480.jpg);
}