Final answer:
Mannerism in art is characterized by elongated forms, precariously balanced poses, collapsed perspectives, irrational settings, and theatrical lighting. It emerged as a reaction to the harmony and ideal proportions of the High Renaissance.
Step-by-step explanation:
Mannerism, a style of art developed in the 16th century, is characterized by elongated forms, precariously balanced poses, collapsed perspectives, irrational settings, and theatrical lighting. It emerged as a reaction and exaggerated extension of the High Renaissance, which emphasized harmony and ideal proportions. Mannerist artists rejected these ideals and opted for dissonance, imbalance, and ambiguous figures.