css to limit image size on child table

This posted code to limit image size in row works good:
td.in_photo {
min-width: auto;
}
td.in_photo img {
width: 100px;
max-height: 200px;
}

This second set of code to limit image size in modal seems to work fine:

tr.in_photo {
min-width: auto;
}
tr.in_photo img {
max-width: 250px;
max-height: 500px;
}

However, I can’t get the code right to limit image size on a data project parent/child page on the child table. Appreciate suggestions. Thank you!

td.in_photo.column-in_photo {
min-width: auto;
}

td.in_photo.column-in_photo img {
width: 75px;
max-height: 150px;
}`