What is the format of poetry?

The title of this poem is written in the middle of the first line. If there is a subtitle, it is like "-xxxxx". General dashes overlap with the main title, and the subtitle is written in the second line at the bottom right of the main title. Then write the name in the middle of the third row, and then start writing poems below. Each line of poetry should be written in the middle of the paper or in four blanks.

(1) a literary genre with a certain rhythm and rhythm, which expresses the author's rich emotions in highly concise language and reflects social life in a concentrated way.

(2) Poetry is a lyrical literary genre. "Shi Mao-Preface" records: "Poets have aspirations. Have ambition in your heart and speak like a poem. " Yan Yu's Poems on Canglang in the Southern Song Dynasty said that "poets chant temperament". There is only one art expressed in words: poetry.