How to set full size width on front page?

Having trouble getting static front page to display at full width.
My website link is https://www.noblish.co.kr
I want to remove white space on left and right side, below the video div.

Thank you for your help!

Hi,

I can’t access your website to check, can you, please remove the security that blocks your link ( maybe you have Country block or something, disable that, so I can check your site ).

Best Regards,
Csaba