full screen background pic

If you see the site I am setting up I have a picture in the background, the same pic is in the white box. My link is http://wgmfx.net/
I want to get rid of that white box and just have the background image of the bridge and city at night taking up the entire page. How do I do this? I am using mobiledoc theme.

Hi!

Unfortunately, we don't provide any services for editing themes for individual users. We provide the themes "as is". However, you may use the following instruction which may help you to edit the code on your own:

https://smthemes.com/blog/browser-devtools-is-at-your-service-or-how-to-change-theme-colors/

Besides, your website is coming soon, but closed for visitors.