Full screen mode lets you maximize your screen space for a more immersive viewing experience.
Video viewing basics
Watch a video in full screen
- Go to the video you want to watch.
- At the bottom-right of the video player, click Full screen
.
.Exit full screen
To exit full screen, click the Exit full screen 
Having issues with full screen mode?
- Keep in mind that YouTube videos on other websites, like blogs or news articles, may not have a full screen option.
- If you have problems viewing videos, make sure you are using the most up-to-date version of your browser.
When in full screen mode, you can scroll down to read comments and check which videos are up next. Scroll back up to hide everything except the video.