Fandom puts gamespot videos at the bottom of every single wiki page. 
Breezewiki reads and parses them as a part of actual pages.
Moreover, they are parsed really poorly, which results in a broken layout.

Example from a random BW instance:
https://breeze.hostux.net/minecraft/wiki/Skin#Properties

Thanks for the info! User blankie already fixed this for us in the code. 
This change is now available on breezewiki.com, and the other instances 
should get updated sooner or later (I don't manage them, so I can't 
update them myself)