Thanks. Tuanphan.
I got my programmer friend to help me today.
This is where we ended. In case it can help anyone:
.image-card-wrapper .image-title p
{
font-size: 36px !important ;
font-size: 3.0rem !important ;
font-family: 'ag_buch', sans-serif !important;
}
.image-card-wrapper .image-title p strong {
font-weight: 300 !important; }