Generally speaking, the structure of official script has the following characteristics:
1, the shape of the oblate body opens.
From most mature Han steles, it can be seen that the shape of official script is mostly flat, wavy and backward, forming a typical official script feature.
2. The horizontal and vertical strokes are symmetrical.
Compared with regular script, official script is more horizontal and vertical. Although the styles of Han steles are diverse, almost all of them have this feature, but the smoothness of their appearance and the symmetry of strokes are also relative, and people often deliberately handle them unsteadily.
3, tight inside and loose outside are naturally dense
Lishu often highlights the main strokes of characters, and the strokes of some characters in some Han inscriptions even become exaggerated, such as the horizontal painting of the word "God" in Shenque inscriptions; Vertical painting of the words "destiny" and "surge" in Ode to Shimen.