Hanging punctuation
In typography, hanging punctuation is a technique that is supposed to lead to calmer edges. Here are punctuation marks that need to be set at the line beginning or end, pushed outside the column edge, so that the letters that appear before or after the punctuation marks, once again end the column border. Are for example, justified the hyphens in the column, there are optical gaps at the edge because of the hyphen leaves plenty of white space left. By moving the hyphen beyond the edge of the column, the previous letter is flush with the edge of the column and the visual gap is closed.