Upfront Builder Maintenance Page Top padding

Hi,

I'm helping my old chess coach with a website.
I'm trying to fix the top padding from 200 to 30. I don't know where I can make this change?.
If you let me know the .php file or .css file I'll manually edit it through vim.

Please check screenshots.


I would like to remove that big padding on top.

Thanks for your help,
Techhelpstew