What poetic styles did the famous poets Li Bai, Du Fu and Bai Juyi show?

Li Bai inherited Chen Ziang's innovative spirit, saying that "since Jian 'an came, beauty is not precious". At the same time, he studied Chu Ci and Yuefu, created a unique romantic poetry style, and completed the mission of poetry innovation. When he arrived in Du Fu, he summed up his own creative experience and clearly put forward the idea of "not getting rid of the false body and getting rid of elegance, but benefiting many teachers", which has both criticism and inheritance, paying attention to both the spirit of content and the form of melody. Because of this, his realistic poetry can "learn from the strengths of the past and the present and be unique" and undertake the important task of connecting the past with the future. Bai Juyi's "Writing for Time, Poetry for Things" reveals the realistic tradition of China's poetry more deeply.