msHorizontalMirror property
Gets or sets whether a video element is flipped horizontally in the display.
This property is read/write.
Syntax
<script type="text/javascript">
var myVideo = document.getElementById("videoTag1");
myVideo.msHorizontalMirror = true;
myVideo.play();
</script>
Property values
Type: boolean
When true, the video playback is flipped horizontally.
Remarks
msHorizontalMirror can be useful when you view a webcam preview, because it makes the image move left or right with you, as in a mirror. Otherwise, the image on a webcam moves in the opposite direction from your movement.