Lighbox need improvement

[kmk]

Hi, attached screenshot to explain the issue and requests:

Orange: icon color issue

Red: extend the width to full screen. 

Green: extend the video box as full as possible. 

If we can remove the spaces issues, it will improve the purpose of the same feature. Because after open the screen, users just have to scroll down or scroll up, and click to the Close icon to exit the page. 

The width space only reduce the screen size yo show the video and functionality, nothing to help.