Larger Video on Lightbox pop up

Hi -

Loving Webflow. Implementing a lightbox at the moment to launch a video from a Vimeo link. However, it pops up so small - it looks so sad all alone in the middle of the page;-(

Is there a way to define the size of the lightbox video as a percentage of the VW?

Googled this and people are suggesting custom code? Surely this is not necessary?

Here is my public share link:

Your share link isn’t working.

Hi - thanks for the reply. Apologies. I have now updated my original post with the link. But this is it here too.

The lightbox is launched by the biutton in the middle of the slider.

The idea is to launch this film at a larger scale onscreen than it is currently.