If you mean to make the videos vertical, you can achieve a similar effect, you can use this CSS code - Vertical video display (like Shorts).
In case it doesn’t fully cover your needs, please elaborate on what exactly should be changed 
If you mean to make the videos vertical, you can achieve a similar effect, you can use this CSS code - Vertical video display (like Shorts).
In case it doesn’t fully cover your needs, please elaborate on what exactly should be changed