1. It allows you to increase or decrease the size of the video as it appears on the webpage. Increasing the size of the video too large may compromise its clarity depending on the Definition it was rendered.
    2. It allows you to select the approximate area that the video will appear on the screen. Exact positioning will vary depending on Monitor size and type.

Both Size and Position Options will be ignored when viewing on a smartphone. The video will always appear front and center.