.myom-modal-form-scroll {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
}

.myom-modal-form-scroll .modal-header,
.myom-modal-form-scroll .modal-footer {
    flex-shrink: 0;
}

.myom-modal-form-scroll .modal-body {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
}