div#knowledge {

    li.beginner:after {
        content: " ◽️◼️◼️";
    }

    li.user:after {
        content: " ◻️◼️◼️";
    }

    li.user.in-progress:after {
        content: " ◻️◽️◼️";
    }

    li.confirmed:after {
        content: " ◻️◻️◼️";
    }

    li.confirmed.in-progress:after {
        content: " ◻️◻️◽️";
    }

    li.master:after {
        content: " ◻️◻️◻️";
    }
}