The width and height arguments do not work anymore due to responsive function built into the theme and way to control the width (height is auto calculated for the video depending on the original video size itself) is through column-shortcodes. You can use CSS too but can run into issues on mobile devices if you force a width on the video.
To constrain the width of the videos, pls use column shortcodes (more the number of columns, more the width and height of the video) –
https://www.livemeshthemes.com/appdev/column-shortcodes/
The column shortcodes ensure the videos display right on devices of all sizes, including smartphones and tablets. Hope this helps.