I want to add a poem to my composition. How should I change the format?

There should be no need to change the format. Used at the beginning of the article, pointing out the topic, as an introduction, the full text can be launched around it. In this paper, the summary of the previous paragraph is used, and finally the summary of the full text is used. For example, when writing about spring, you can quote a poem about spring at the beginning, and then describe what you see, compare it with it or sigh. You can also insert one or more poems into the description to show different scenery. Of course, the poem at the end is also very good, making people have a long aftertaste. Be careful not to quote too many articles.