Front page does not display correctly

Hello, I'm having an issue with the front page not scaling properly to my browser. I'm running Seamonkey 2.53.4 with cookies enabled. NoScript and AdBlock Plus are both disabled for this page, yet I still can't get the page to load correctly.

Is that how the beta site looks like?
Edit yeah. https://www.fakku.net/account/beta
Turn it off and it should be this if you also do dark mode.

Palemoon version