The revisions page for Was the { Levels:n } beacon tag removed/altered in Minecraft Java 1.14?, seems to have a rendering bug when it comes to displaying code.
Instead of constraining the code section to a specific width, it is allowed to fill horizontally, introducing a horizontal scrollbar to the page, and throwing the layout out of whack:
It's worth pointing out that on the second revision, if you select 'side by side', the code section is constrained to it's own box correctly, making me think this is an issue with the 'Inline' rendering/view specifically:
