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Fullscreen mode
Fullscreen mode allows you to watch videos that take up your entire screen.
Follow the instructions below for the YouTube app or mobile site.
YouTube App
Watch in fullscreen
- Go to the video you'd like to watch.
- At the bottom of the video player, tap fullscreen
.
Exit fullscreen
At the bottom of the player, tap fullscreen exit 
最後更新：2017-05-23 04:18:32