Tutor lms custom css codes not working

Hi,
On my site, the custom css for basic things like background color, etc is working normally but css codes for only tutor lms specific things are not working, please help me out.

For example the following code won’t work:

.tutor-course-sidebar-card-pricing{
display:none !important;
}

But this code will work:

.grecaptcha-badge {
visibility: hidden;
}