Similar to Shape Styles that you apply to shapes, PowerPoint provides you with Video Styles for your inserted video clips. These pre-built Video Styles add edges, shapes, and effects to videos, and apply with just a single click. Your videos no longer need to be rectangular. Some of the Video Styles make the video clip to play within an oval or a rounded rectangle. Video Styles also transform the look of your inserted videos by applying borders, 3-D effects, shadows, frames, etc. around your video clip.