Every device (2 Macs, 1 iPad Pro, 1 iPhone 7), every browser (Safari, Chrome, Firefox) exhibits the same symptoms.
https://forum.marginnote.com/c/Wiki/16 this page sits in loading position forever unless a dropdown is clicked.
Rather than describe the issue in detail, I’ll put a movie below. It essentially renders the wiki unusable. The wiki doesn’t show unless one of the dropdowns is clicked on, which then causes the dropdown to obscure most of the content.