app/assets/stylesheets/lcms/engine/print/_lesson-base.scss
.c-ld__body--pdf {
@include ld-custom-styles;
@import 'lesson/base-typography', 'lesson/callout', 'lesson/def', 'lesson/expand', 'lesson/group', 'lesson/image',
'lesson/materials', 'lesson/optbreak', 'lesson/pd', 'lesson/pv', 'lesson/section', 'lesson/smp', 'lesson/title';
}