The text is a small four-song style, the line spacing is fixed at 19 points, the two ends are aligned, and the first line is indented by 2 words. First-class title: No.3 imitation song style, fixed line spacing 1 9jin, top1line, bottom 0.5 line, the first line is not indented. Second-level title (e.g. 1. 1, middle half angle): No.4 in italics, with a fixed spacing of19lb, with 0.5 lines above and 0.5 lines below. The first line is not indented. If two lines are needed, hanging indent means text alignment.