A young child is captured in a video walking and running along a long, interactive floor display in Yuzhong District, China. The display is designed like an oversized piano keyboard, featuring distinct black "keys" against a dynamically lit background. The floor continuously illuminates with a vibrant rainbow color gradient, transitioning through shades of red, orange, yellow, green, blue, and purple. The child, dressed in a light-colored top and dark pants, moves from the foreground to the background, interacting with the colorful and playful display. The setting appears to be an indoor or covered pathway, likely in the evening or a dimly lit environment, which enhances the visual impact of the illuminated floor. There is no visible text in the video.