In the paper format, there are two spaces between the first-level title and the text, two spaces before the second-level title paragraph, two spaces between the title and the text, and so on.

There is no provision for leaving two spaces before a paragraph in ancient classical Chinese, and most of them are written at the end, and even the paragraphs are too lazy to divide. Only in special occasions, such as commemorating and mentioning respected people or things, can spaces play a role in prompting. It is said that this is also a reference to the writing habit of indentation at the beginning of western English paragraphs at that time. The difference is that the indentation at the beginning of a western paragraph does not stipulate how much to leave, while Chinese stipulates that two spaces must be left blank. In fact, the ultimate goal is to make the paragraph structure clear.