Popup not centrered

I’ve created a test popup from my website here:
https://www.mantisfpv.com.au/delivery-policy/

The popup itself isn’t centered. However, resizing the width of the browser centers it when it is in mobile mode.

I’m using the DIVI theme if that helps.
I also had to add to the CSS:

.pum-overlay.pum-active,  
.pum-overlay.pum-active .popmake.active {           
    opacity: 1 !important;           
    display: block !important; 
}

• This topic was modified 3 years, 5 months ago by kelvinongau. Reason: spelling error
• This topic was modified 3 years, 5 months ago by kelvinongau.

The page I need help with: [log in to see the link]