This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
HTMLVideoElement.msSetVideoRectangle() method sets
the dimensions of a sub-rectangle within a video.
This proprietary method is specific to Internet Explorer and Microsoft Edge.
This method does not return a value.
HTMLVideoElement.msSetVideoRectangle(left: 2, top: 0, right: 4, bottom: 4);