1. Rectangular shape, with one and a half characters in square regular script as the measure, one character as the main body, and half character as the vertical feet. The approximate ratio is about 3:2.
2. The strokes are horizontally and vertically, evenly rounded, and basically the same thickness. All horizontal and vertical paintings are equidistant and parallel, and all strokes are mainly circles, with circles rising and closing, circles within squares, and squares within circles, making the circles flexible and interesting.
3. Balance, symmetry, and space division. Balance and symmetry are the unique charms of seal script. Symmetry not only exists in left-right symmetry and up-down symmetry, but also exists in the local symmetry of the characters and the symmetry of the left and right inclinations of the arc-shaped strokes.
4. Tighten the top and loosen the bottom. The main part of most characters in Xiaozhuan is in the upper half, and the lower half is a telescopic hanging foot. Of course, there are also characters with no feet at the bottom. The main strokes are in the lower part and the upper strokes can be raised.
Extended information:
Qin Prime Minister Li Si is known as the originator of Xiaozhuan. According to the "Historical Records: Biography of Li Si", after Prime Minister Li Si was killed by Zhao Gao and imprisoned, he tried to write a letter to the Second Emperor of Qin. In the article, he ridiculed that during his reign, he was "even more capable of painting, fighting against dendrobium and weighing articles, and spreading them all over the world. "Taking the name of Qin" is a crime.
It can be inferred from this that Li Si was probably directly involved in the work of "Shu Tongwen". Furthermore, the book Shujuan compiled by Zhang Huaiguan, a calligraphy theorist of the Tang Dynasty, and the Kangxi Dictionary of the Qing Dynasty also believe that the Xiaozhuan was written by Qin Prime Minister Li Si. Therefore, later generations often compared the small seal characters engraved on Qin Dynasty artifacts to Li Si's handwriting. Among them, the more credible one is "Taishan Carving Stone".
Baidu Encyclopedia Xiaozhuan