In ancient times, the grid spacing for small characters was 1.7 or 1.8 cm, and the font size was relatively small. Now people generally use a 2 cm grid, and the row spacing can be 2.5 cm.
The small print is in regular script. Zhong You was founded in the Wei Dynasty of the Three Kingdoms. The classic works in lower case are: Zhongyou declaration form and recommended season direct form; Wang Xizhi's theory of Huang Tingjing and Yue Yi; Wang Xianzhi's Thirteen Odes to Luoshen, etc.