What is Juxtaposition in in literature and film?

If you have any Idea about juxtaposition in literature and film you can comment in this article baut in scince and society what is that really?

In my opinion Juxtaposition in literature the arrangement of two opposing ideas, characters, objects, etc, side by side or in similar narratives for effect. In discourse theory, and computational discourse, contrast is a major discourse relation, on par with relationship like explanation or narration, and work has concentrated on trying to identify contrast in naturally produced texts, especially in cases where the contrast is not explicitly marked. The connection that develop between the two may serve to give emphasis to the side.