Instead of it's proper, beastly dark appearance, the Beast's Lair looks to be a bright white and blue.
But far more importantly, I'm unable to open spoilers. Clicking on them doesn't even change the wording from "Show" to "Hide", it's just that nothing happens.

This admittedly only happens on Chrome, but that's my primary browser. The site seems to work just fine on Firefox.
I've got Windows 10, everything's up to date, and nothing's showing up on a check for viruses.