Official script stroke requirements

Jin Li (Han Li) straightened and shortened the arc drawing in seal script, broke the symmetrical font structure of seal script, and added strokes such as skimming, pressing, folding, hooking and lifting. After the official script was finalized, eight basic strokes such as horizontal, vertical, left, right, folding, dot, hook and lifting were formed, which laid the foundation for the formation of regular script later.

The physical characteristics of Lishu are oblate, and the height-width ratio is about three to five. Individual words with upper and lower structures and upper, middle and lower structures will break the normal ratio of height to width.