What is the name of calligraphy with one large font and one small font?

Cursive script because one of the rules of cursive script is to be interspersed, dense and contrasted, and patchwork. So in the process of writing, the size of words is different. Cursive script is a font of Chinese characters, which can be divided into broad sense and narrow sense. In a broad sense, regardless of the age, all scribbled words are regarded as cursive. Narrow sense, that is, as a specific font, was formed in the Han Dynasty and evolved on the basis of official script in order to write simply.