Polish University Physics uses indentation rules which can't be expressed using .cnx-indentation or .cnx-indentation-base. This PR adds a when (default()) guard to both mixins, allowing books to opt-out of their rules by adding .cnx-indentation() {} to their style.
Polish University Physics uses indentation rules which can't be expressed using
.cnx-indentationor.cnx-indentation-base. This PR adds awhen (default())guard to both mixins, allowing books to opt-out of their rules by adding.cnx-indentation() {}to their style.