Create a Drop Down Menu like shown below with debut theme

[Mrdontpanic]

Hello, I'm trying to get my menu to drop down like the photo shown. Right now it is coming from the left side. I also need it to cover the logo when dropped down. Please help. The first image is what I need and the second is what I have. I wanna also make the menu the same for the desktop. Here is the URL: shitnotfree.com

 

[NomtechSolution]

Apply text-align: center on menu item for mobile and add padding around it to make it like image.