The video shows a cartoon rabbit standing in a green field with a blue sky in the background. The rabbit is wearing a yellow shirt and red shorts. It uses a black marker to draw a square on the ground. The rabbit then draws a smaller square inside the first one, creating a two-dimensional box. The rabbit then draws a third square inside the second one, completing the three-dimensional box. Finally, the rabbit draws a ladybug on the third square, making it appear as if the ladybug is inside the box.