Hi Alexa,

Thanks for writing to us.

We don't have an option to adjust this, however, we can provide you with possible css once you share your website URL.

I look forward to your response.

Hi Alexa,

Thank you for getting back to us.

Unfortunately, as @Judith mentioned earlier, our theme does not come with this feature out of the box, but it has a button/icon that you can use to make the video full-screen.

We appreciate your understanding on this matter.

Thanks,