In the video, a person is seen painting a yellow stripe on a white canvas using a paintbrush. The brush strokes are thick and even, covering the canvas with a vibrant yellow color. The person's hand is visible, holding the brush and applying the paint with precision. The background is a gray marble surface, providing a neutral backdrop that contrasts with the bright yellow paint. The video captures the process of painting in real-time, with the brush moving back and forth across the canvas.